Kenya's Dennis Kimetto crosses the finish line to win the Berlin Marathon Sunday. Kimetto set a new world marathon record, breaking the 2 hour, 3 minute mark for the first time. Tobias Schwarz/AFP/Getty Images hide caption

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Derek Boogaard of the Minnesota Wild (left) and Wade Brookbank of the Vancouver Canucks exchange punches during a fight in the first period of a November 2005 game in Vancouver, Canada. Jeff Vinnick/Getty Images hide caption

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Derek Jeter smiles during a game against the Toronto Blue Jays on Sept. 18. The Yankee captain, who retires at the end of this season, joined the 3,000-hit club in 2011. Frank Franklin II/AP hide caption

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Tony Stewart prepares for a NASCAR Sprint Cup Series race at Watkins Glen, N.Y., in August. Stewart won't face charges in the Aug. 9 death of driver Kevin Ward Jr. Derik Hamilton/AP hide caption

itoggle caption Derik Hamilton/AP