Bonds has third surgery on knee

SAN FRANCISCO -- Barry Bonds had a third operation on his injured right knee, the latest setback in the slugger's rehabilitation, he said on his Web site Wednesday.

Bonds underwent arthroscopic surgery Monday in California as doctors tried to clean out an infection, first draining fluids from his knee, according to a journal entry from Bonds posted on his Web site.

"The surgery went well. Dr. [Arthur] Ting cleaned out the infected area and they are now treating me with antibiotics," Bonds wrote. "I know you have many questions regarding me playing baseball, but right now I have to spend the time focusing on getting healthy. I've been through ups and downs before, and I will be back."

The surgery was first reported by the San Francisco Chronicle. The newspaper reported Bonds would take antibiotics for at least two weeks and could not resume his rehab until doctors are assured the infection is gone.

Bonds already had operations on the knee Jan. 31 and March 17 to remove damaged cartilage.

The San Francisco Giants have stopped giving medical updates on Bonds, and his agent on Tuesday would not confirm that Bonds had the operation.

"The only comment I have about Barry is that the day his knee is healthy, he will be back on the field in uniform," Jeff Borris said.

Bonds has been giving his medical updates on his personal Web site.