
FILE - In this April 5, 2010 file photo, Atlanta Braves executive and Hall of Famer Hank Aaron tosses a baseball prior to the start of the team's opening day baseball game against the Chicago Cubs at Turner Field in Atlanta. Aaron predicts that hitters will bounce back this season following the year of the pitcher. The Hall of Famer also tells the AP he thinks that barring injuries, there's a good chance of a Red Sox-Giants World Series. (AP Photo/Rich Addicks, File)

Washington Nationals right fielder Bryce Harper holds a football as part of a drill as he waits to chase a fly ball during a spring training baseball workout Tuesday, Feb. 22, 2011, in Viera, Fla. (AP Photo/David J. Phillip)

The shadow of a Chicago White Sox pitcher is seen during a spring training baseball workout, Wednesday, Feb. 23, 2011, in Glendale, Ariz. (AP Photo/Morry Gash)

Cincinnati Reds starting pitcher Edinson Volquez throws during baseball spring training Tuesday, Feb. 22, 2011, in Goodyear, Ariz. (AP Photo/Mark Duncan)

FILE - In this Aug. 17, 2010 file photo, St. Louis Cardinals first baseman Albert Pujols looks up toward the scoreboard as he stands in the dugout during the seventh inning of a baseball game against the Milwaukee Brewers in St. Louis. St. Louis manager Tony La Russa is reiterating that he believes three-time NL MVP Pujols is being pressured by the players' union during contract negotiations. With a noon Eastern deadline for a new deal looming, Pujols was not at camp with the Cardinals on Wednesday, Feb. 16, 2011. (AP Photo/Jeff Roberson, File)

San Diego Padres' Ryan Ludwick, right, swings a bat as he gets ready for batting practice during baseball spring training Monday, Feb. 21, 2011, in Peoria, Ariz. (AP Photo/Charlie Riedel)

Los Angeles Dodgers players are silhouetted against a cloudy sky as they run during a spring training baseball workout Saturday, Feb. 19, 2011, in Glendale, Ariz. (AP Photo/Morry Gash)

In this photo taken Monday, Feb. 14, 2011, Detroit Tigers pitcher Justin Verlander makes his way to the practice field for a baseball spring training workout in Lakeland, Fla. (AP Photo/David J. Phillip)

St. Louis Cardinals' Matt Holliday sits on the bench after being picked off at second base during the sixth inning of a baseball game against the San Diego Padres on opening day Thursday, March 31, 2011, in St. Louis. (AP Photo/Tom Gannam)