Florida guard Scottie Wilbekin and his teammates are among the teams thought to have a strong chance of winning this year's NCAA men's basketball tournament. Are the Gators your pick? Curtis Compton /MCT/Landov hide caption

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Curtis Compton /MCT/Landov

The U.S. hopes to repeat as Paralympic gold medalists in sled hockey Saturday, when the team will play host Russia. Earlier this week, Nikko Landeros of USA was chased by Dmitrii Lisov of Russia during group play at the Sochi 2014 Paralympic Winter Games. Harry Engels/Getty Images hide caption

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Harry Engels/Getty Images

Jason Collins, who played for the Boston Celtics in 2012, signed a 10-day contract with the Brooklyn Nets on Sunday. Collins came out as gay in an article in 2013. Bruce Bennett/Getty Images hide caption

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Bruce Bennett/Getty Images

Germany's Maria Hoefl-Riesch during the slalom run of the women's alpine skiing super-combined event at the 2014 Sochi Winter Olympics. Stefano Rellandini /Reuters/Landov hide caption

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Stefano Rellandini /Reuters/Landov

Missouri senior defensive lineman Michael Sam speaks to the media during an NCAA college football news conference in Irving, Texas. Sam revealed in interviews on Sunday that he is gay. Brandon Wade/AP hide caption

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Brandon Wade/AP

A West Coast team player kicks the ball during a match at the Adidas Challenges America's Youth Soccer Stars tournament in Venice, Calif. Getty Images hide caption

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Young Athletes Risk Back Injury By Playing Too Much

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Seahawks quarterback Russell Wilson stiff-arms Broncos cornerback Champ Bailey on Sunday during Super Bowl XLVIII at MetLife Stadium in East Rutherford, N.J. Jeff Zelevansky/Getty Images hide caption

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Jeff Zelevansky/Getty Images

Detached admiration for sporting achievement? Not on your life. It's all about allegiance and, even, love. Kevin C. Cox/Getty Images hide caption

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Kevin C. Cox/Getty Images

Novak Djokovic of Serbia wipes the sweat from his face during his quarterfinal loss to Stanislas Wawrinka of Switzerland at the Australian Open tennis championship in Melbourne. Aaron Favila/AP hide caption

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Aaron Favila/AP