Brian Wilson unlikely to sign until after Opening Day

Former Giants closer Brian Wilson is rehabbing following Tommy John surgery. (Ezra Shaw/Getty Images)

Free-agent reliever Brian Wilson is unlikely to sign with a new team before the 2013 season opens, according to a source in a report by Scott Miller of CBSSports.com.

The former Giants closer is said to be at about "80 to 85 percent" in bullpen sessions while rehabbing from a second Tommy John ligament transfer surgery. Wilson does not want to audition for clubs until he is 100 percent, according to a source with knowledge of pitcher's situation.

A pitcher undergoing Tommy John surgery typically requires at least 12 months to regain full strength in his pitching arm. Wilson is 11 months into his recovery.

Wilson was not satisfied with his arm strength in a January audition with the Mets and reportedly is most likely to sign with a club several weeks after opening day.