Chicago Bears quarterback Jay Cutler stands on the sideline in the third quarter after leaving the game with an injury against the Green Bay Packers on Sunday. His decision to sit out of the remainder of the game, which Chicago lost, made Cutler the target of critical Tweets from his peers in the National Football League. Jonathan Daniel/Getty Images hide caption

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Fitness pioneer Jack LaLanne, seen in this undated photo, was inspiring TV viewers nationwide to trim down and pump iron long before exercise became a national obsession. AP hide caption

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LeBron James of the Miami Heat looks on during Wednesday's game against the Detroit Pistons in Miami. Mike Ehrmann/Getty Images hide caption

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Groundskeepers at AT&T Park in San Francisco paint the World Series logo onto the field before the Giants and Texas Rangers started team workouts Tuesday. Justin Sullivan/Getty Images hide caption

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