Team:	Mercedes
Debut:	Belgium '91
Starts:	267
Wins:	91
Poles:	68
Fastest Laps:	76
'10 position:	9th

Michael Schumacher's much-hyped return to Formula 1 last year failed to live up to expectations, and the seven-time world champion has a lot of work to do to restore faith in his potential. Having been left in the shade by team-mate Nico Rosberg for much of 2010, Schumacher will need to lift his game to show that he has lost none of the sparkle that made him the most successful driver in F1 history. The fear is, though, that despite an encouraging finish last season, another disappointing campaign could prompt him to turn his back on the sport for good.