American League’s Mariano Rivera, of the New York Yankees, pitches during the eighth inning of the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Kathy Willens)
American League’s Mariano Rivera, of the New York Yankees, acknowledges a standing ovation during the eighth inning of the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Matt Slocum)
National League’s Bryce Harper, of the Washington Nationals, stretches during batting practice before the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Matt Slocum)
National League's Bryce Harper, of the Washington Nationals, hits a 471 foot, seventh home run, during the MLB All-Star baseball Home Run Derby, on Monday, July 15, 2013 in New York. (AP Photo/Kathy Willens)
SEPTEMBER 22: National League’s Gio Gonzalez of the Washington Nationals delivers during third inning of the MLB All-Star baseball game against the American League All-Stars, Tuesday, July 10, 2012, in Kansas City, Mo. (AP Photo/Charlie Riedel)
American League's Prince Fielder, of the Detroit Tigers, poses with his children Jaden, left, and Haven after receiving the MLB All-Star baseball Home Run Derby trophy, Monday, July 9, 2012, in Kansas City, Mo. (AP Photo/Charlie Riedel)
Virginia Tech's Andrew Rash (left, shown in a 2010 ACC Tournament game) had hopes of being taken in the MLB draft, but he wasn't selected after a disappointing junior season. (AP Photo/Jim R. Bounds)
Duke pitcher Marcus Stroman, shown with the United States Collegiate National Team, is a player analysts are saying could fall to the Nationals at the 16th pick in the MLB draft. (AP Photo/Jim R. Bounds)