Fabrice Muamba was a guest at the charity Corazon Classic Match between Real Madrid and Manchester United veterans teams at the Bernabeu.
The Bolton midfielder, who suffered a cardiac arrest in an FA Cup tie at Tottenham in March, was given an ovation by both star-studded sides and spectators as he carried the match ball out for the kick-off.
The third edition of the Corazon Classic Match, from which the proceeds will go to Real's Foundation academies in Africa, saw Madrid beat their United counterparts 3-2 in front of a crowd of around 60,000.
Madrid's goals came from Fernando Morientes after seven minutes, Luis Figo (11) and Fernando Redondo (69), with United's replies coming from Lee Sharpe (nine) and Teddy Sheringham (79).
Also involved in the match were the likes of Zinedine Zidane, Roberto Carlos, Emilio Butragueno, Andy Cole, Dwight Yorke and Edwin van der Sar.