When Fabrice Muamba collapsed on the White Hart Lane pitch earlier this year, the thousands in the stadium and millions watching at home feared the worst.
The way the former Bolton man fought his way back to health inspired the nation - and it now looks as if the incident may have a silver lining.
After Muamba's collapse, new tests were put in place for footballers to try and identify potential heart defects, and one such test may have saved the life of Burnley youngster Jack Errington.
The 17-year-old defender is recovering after successfully undergoing heart surgery when 'The Muamba Test' revealed that he had an enlarged aorta.
Errington admitted he was 'dead shocked' when he learned of his condition.
"At first they said it wasn't too bad but something could happen in 20 years and since I was a footballer I had to get it done as soon as," he said.
Errington had the procedure in his native North East where he was visited by former England captain Alan Shearer.
"He actually said to me when they gave him his results he thought they were joking," Shearer said.
"Now he's had the operation, he's back on the mend and hopefully he'll be back playing professional football in a few months' time.
"It shows that a little good has come out of Muamba's situation, which was unfortunate for Fabrice but in a way he's helped someone else."