The doctor who ran to Fabrice Muamba's aid is a distinguished cardiologist who is also a father of three and a keen cyclist.
Dr Andrew Deaner graduated from the Leeds University School of Medicine in 1987 and now works in NHS and private hospitals in London and Essex.
He treats patients with all types of cardiac disease, including those with coronary artery disease and people who have suffered angina, heart attack and cardiac arrest.
He is also an expert in pacemakers as well having a special interest in heart disease in pregnancy.
Heavily involved in the training of junior doctors, the Spurs fan is chair of the Specialist Training Committee in General Medicine for the north Thames region and a member of the British Cardiovascular Society and the British Cardiovascular Intervention Society.
Furthermore, Dr Deaner holds the post of secretary of the Cardiology Council of the Royal Society of Medicine.
As well as his position at the NHS London Chest Hospital, Dr Deaner is a consultant cardiologist at Spire Roding and Spire Hartswood private hospitals in Essex.
He is also the clinical lead in cardiology and clinical director of medicine at Barking Redbridge and Havering University NHS Trust.
In his personal profile for Spire, Dr Deaner writes: "I was born and brought up in south west Essex.
"I am married with three teenage children, and spend much of my spare time cycling on a Colnago C50 road bike.
"Amongst numerous cycling achievements, I have successfully ridden an amateur stage of the Tour De France on six occasions and have completed the ultra-long distance Paris-Brest-Paris cycle event on two occasions.
"My other interests include travel and the theatre."