Chavez had to have an epidural administered on Feb. 29 to alleviate stiffness in the L4-L5 area of the back where he underwent laser microsurgery to repair damaged discs this past November. He also had labrum surgery in both shoulders last year.Chavez played only 90 games in 2007 because of the assorted injuries, batting .240 with 15 home runs and 46 RBIs. He hasn't played a full season since 2005, when he appeared in 160 games. Meanwhile, in other injury news, rookie outfielder Aaron Cunningham showed up with a cast on his left wrist and is out for from six to eight weeks. Cunningham said he was injured diving back into second base on a running play during Saturday's split-squad game against the Mariners in Peoria. Cunningham stayed in the game and took another at-bat. "But afterwards I realized something wasn't right," he said. X-rays revealed the injury on Sunday. Cunningham was re-assigned to the Minor League camp on Monday, along with pitcher Chris Gissell and catcher Anthony Recker. The A's have a total of 44 players remaining in the Major League camp: 34 on the 40-man roster and 10 non-roster invitees. The breakdown is 20 pitchers, 12 infielders, eight outfielders and four catchers.
Barry M. Bloom is a national reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.