Preston North End's 1-0 Capital One Cup victory against rivals Blackpool was marred by a pitch invasion which resulted in a horse trampling on a steward.
Tom Clarke's 87th minute winner at Deepdale sparked a jubilant invasion at the final whistle, as hundreds of Preston supporters poured onto the pitch to goad visiting Blackpool fans.
Police deployed horses to control the crowds, but one of the stewards was trod on after after he fell to the ground while trying to contain one of the fans.
The horse tramples on the steward at the end of the game
The steward was treated by police and medics, and taken away on a stretcher to be x-rayed. A Football Association investigation is inevitable.
The west Lancashire derby has been played in all four tiers of the Football League and the clubs' stadiums are only 17 miles apart.
Former Preston manager Gary Peters treated the rivalry so intensely he refused to use the word "Blackpool" in public, referring to the Tangerines instead as "that lot with the tower".
Preston's victory represented a significant coup considering they play in League One, whereas Blackpool play in the Championship.
PNE 1-0 Blackpool
Preston North End v Blackpool - Capital One Cup First Round(01 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(02 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(03 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(04 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(05 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(06 of28)
PRESTON, LANCASHIRE - AUGUST 05: Preston North End fans celebrate after their team have scored the winning goal prior to their pitch invasion during the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(07 of28)
PRESTON, LANCASHIRE - AUGUST 05: Preston North End fans celebrate after their team have scored the winning goal prior to their pitch invasion during the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(08 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(09 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(10 of28)
PRESTON, LANCASHIRE - AUGUST 05: Fans invade the pitch at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(11 of28)
PRESTON, LANCASHIRE - AUGUST 05: Fans invade the pitch at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(12 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(13 of28)
PRESTON, LANCASHIRE - AUGUST 05: Fans invade the pitch at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(14 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(15 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(16 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(17 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police dog handlers guard the pitch as they try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(18 of28)
PRESTON, LANCASHIRE - AUGUST 05: Preston North End fans celebrate after their team have scored the winning goal prior to their pitch invasion during the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(19 of28)
PRESTON, LANCASHIRE - AUGUST 05: Preston North End fans celebrate after their team have scored the winning goal prior to their pitch invasion during the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(20 of28)
PRESTON, LANCASHIRE - AUGUST 05: Preston North End fans celebrate after their team have scored the winning goal prior to their pitch invasion during the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(21 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(22 of28)
PRESTON, LANCASHIRE - AUGUST 05: A policeman with dog faces the fans in the stands at the final whistle after an invasion on to the pitch by part of the crowd after the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(23 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(24 of28)
PRESTON, LANCASHIRE - AUGUST 05: Fans invade the pitch at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(25 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot run on the pitch to try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(26 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(27 of28)
PRESTON, LANCASHIRE - AUGUST 05: Fans invade the pitch at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)
Preston North End v Blackpool - Capital One Cup First Round(28 of28)
PRESTON, LANCASHIRE - AUGUST 05: Police on foot and horse try to control the pitch invasion by fans at the final whistle of the Capital One Cup first round match between Preston North End and Blackpool at Deepdale on August 5, 2013 in Preston, Lancashire. (Photo by Clive Brunskill/Getty Images) (credit:Getty Images)