Chicago Cubs pitcher Jeff Samardzija throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs' Chris Volstad throws a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs players throw during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitchers and catchers are seen during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs' Marcos Mateo throws a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs Matt Garza throws a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs catcher Geovany Soto catches during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs catcher Geovany Soto throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum watches during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum watches during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Some baseballs are seen at the Chicago Cubs training facility before a spring training baseball workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Matt Garza throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Jeff Samardzija throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Matt Garza throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Matt Garza throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Jeff Samardzija throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum watches during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs starting pitcher Ryan Dempster throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitching coach Chris Bosio demonstrates during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitching coach Chris Bosio watches during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs relief pitcher Carlos Marmol throws during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs' Kerry Wood fields a ground ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitching coach Chris Bosio demonstrates during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Some baseballs are seen in a cart at the Chicago Cubs training facility during a spring training baseball workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Some baseballs are seen in a cart at the Chicago Cubs training facility during a spring training baseball workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Some baseballs are seen in a cart at the Chicago Cubs training facility during a spring training baseball workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum watches during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Matt Garza throws during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs relief pitcher Kerry Wood throws a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs catcher Geovany Soto catches a pitch during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs relief pitcher Carlos Marmol throws during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Andrew Argel cleans some players' shoes outside the Chicago Cubs clubhouse before a baseball spring training workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs relief pitcher Jeff Samardzija catches a ball catches a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs relief pitcher Jeff Samardzija catches a ball catches a ball during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum, left, talks to pitcher Ryan Dempster during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs manager Dale Sveum, left, talks to pitcher Ryan Dempster during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitching coach Chris Bosio, right, watches pitcher Carlos Marmol throw during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitching coach Chris Bosio, left, congratulates pitcher Carlos Marmol after throwing during a spring training baseball workout Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Chicago Cubs pitcher Jeff Samardzija reacts after catching a ball off the bat of bullpen coach Lester Strode (35) during a spring training baseball workout, Tuesday, Feb. 21, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)

Some baseballs are seen at the Chicago Cubs training facility before a spring training baseball workout Sunday, Feb. 19, 2012, in Mesa, Ariz. (AP Photo/Morry Gash)