He is also a model professional, never caught drinking before a game, obsessed with self-improvement and driven by the pursuit of trophies.

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Four-time grand slam champion Clijsters felt there was still room for improvement in her game despite recording a third successive straight-sets win.

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Chandler also made 72% of his shots near the rim last year, which is a significant improvement on the Knicks' low-post game: In last season's first-round playoff defeat to the Boston Celtics, the team took 17 shots while posting up near the basket and made just two of them.

WSJ: Knicks Targeting Another Big Name: Tyson Chandler

Football clubs are experts when it comes to keeping a player in peak physical condition, but Pericard is convinced the game has room for improvement when it comes to addressing issues of mental well-being.

CNN: Balotelli on the brink: Sink or swim for 'Super Mario'?

This continued improvement and upward trend is at an all-time high for the video game industry and exceeds every other entertainment format, including sales of music with parental-advisory labels, R-rated movie tickets, and R-rated and unrated DVDs.

FORBES: Connect