National League's Bryce Harper, of the Washington Nationals, warms up during MLB All-Star baseball batting practice, Monday, July 9, 2012, in Kansas City, Mo. (AP Photo/Charlie Riedel)
Crowds start to gather at Kauffman Stadium during MLB All-Star baseball batting practice, Monday, July 9, 2012, in Kansas City, Mo. (AP Photo/Jeff Roberson)
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)
Philadelphia Phillies second baseman Freddy Galvis has been suspended 50 games by Major League Baseball for testing positive for a metabolite of Clostebol, a performance-enhancing substance, the league announced on Tuesday, June 19. (AP Photo/Matt Slocum, File)
Former Major League Baseball pitcher Roger Clemens speaks to the media outside federal court in Washington on Monday, June 18, 2012, with his attorney Rusty Hardin at his side, after Clemens was acquitted on all charges by a jury that decided that he didn't lie to Congress when he denied using performance-enhancing drugs. (AP Photo/Manuel Balce Ceneta)
Former Major League Baseball pitcher Roger Clemens (left) and his attorney Rusty Hardin arrive June 18, 2012, at federal court for Clemens' perjury trial. (Associated Press)
Major League Baseball's No. 1 draft pick Carlos Correa, 17, from Puerto Rico, smiles in his new jersey during a news conference after signing with the Houston Astros on Thursday, June 7, 2012, in Houston. (AP Photo/Pat Sullivan)
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)
**FILE** Former Major League Baseball pitcher Roger Clemens, who is on trial for lying to Congress in 2008 when he denied using steroids or human growth hormone, arrives May 24, 2012, at federal court in Washington. (Associated Press)