American surfer Garrett "GMAC" McNamara rides what could be, if confirmed, the biggest wave conquered in history as a crowd watches Monday in Nazare, Portugal. To Mane/Barcroft Media /Landov hide caption

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Competitors in a men's category race in the 2013 National Cyclo-cross Championships in Bradford, England, this month. The sport requires riders to traverse mud and sand on off-road courses peppered with obstacles. Oli Scarff/Getty Images hide caption

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San Francisco 49ers quarterback Colin Kaepernick throws before the NFC Championship game against the Atlanta Falcons on Jan. 20. David Goldman/AP hide caption

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Baltimore Ravens linebacker Ray Lewis speaks at a news conference in New Orleans on Monday. The Ravens face the San Francisco 49ers in Super Bowl XLVII on Sunday. It will be Lewis' last game. Patrick Semansky/AP hide caption

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A bargain at $17.5 million a year. Ronald Martinez/Getty Images hide caption

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