Athletics third baseman Eric Chavez will undergo back surgery and miss the remainder of the 2009 season. Chavez, who is on the disabled list with a herniated disk and strained right forearm, is scheduled to have the operation June 23. A's manager Bob Geren said the upcoming procedure is "no doubt" season-ending, but could give Chavez a chance to salvage his career and play in 2010. The third baseman has said that his back woes could end his career.