Nigel Adkins did not receive a single mention in Southampton's programme for their first match under new manager Mauricio Pochettino against Everton on Monday night.
Adkins was sacked on Friday as chairman Nicola Cortese brought in ex-Espanyol coach Pochettino, who admitted he had been studying the club's squad for "several weeks".
Adkins, who boasted a 54% win record and guided the Saints to back-to-back promotions, did not receive a paragraph of gratitude for his work at St Mary's.
Sky Sports pundit Gary Neville, covering the game, said it was "terrible" of the Saints.
"That's terrible. There is a way to do things in life. Nigel Adkins is a grown man and he knew what he was getting in to. He wouldn't want people to feel sorry for him," he said.
"But to not actually have some type of tribute or mention Nigel Adkins anywhere, almost removing from Southampton's history in 24 or 48 hours, is ridiculous."
Southampton also banned journalists from conducting voxpops outside of the ground as the club's territory resembled a police state.
Despite dominating the first-half, the Saints drew 0-0 with the Toffees to remain 15th.