BOSTON – Boston Red Sox closer Joel Hanrahan needs season-ending surgery on his right forearm, which means a recovery time of 6 to 9 months.

Hanrahan, 31, said Saturday the operation likely will be performed by Dr. James Andrews, probably next week.

“After talking with the doctors here and going down to see Dr. Andrews, he confirmed what the doctors here thought,” Hanrahan said. “I’m going to have to get surgery to repair my flexor tendon. It’s something that, after hearing the doctors here, I kind of prepared for. He just reaffirmed those. I’m going to get it done next week and start the process of getting healthy.”

Hanrahan walked off the mound in the ninth inning of Monday’s 6-5, 11-inning victory against Minnesota after throwing a pitch.

Obtained from Pittsburgh in an offseason trade, the two-time All-Star is making $7.04 million this year and is eligible for free agency after the World Series. He is 0-1 with a 9.82 ERA in nine games and was on the disabled list from April 14 to May 7 with a strained right hamstring.

During his brief stint with the Red Sox, Hanrahan conveted 4 of 6 save chances.

NATIONALS: Left fielder Bryce Harper was out of the lineup for a second consecutive game after having an ingrown toenail removed, and right fielder Jayson Werth went on the 15-day disabled list with a strained right hamstring.

BLUE JAYS: Outfielder Rajai Davis was placed on the 15-day disabled list because of a strained oblique muscle in his left side.

CUBS: Matt Garza worked 31/3 scoreless innings and threw 66 pitches in a rehabilitation assignment for Double-A Tennessee.

BREWERS: Left-hander Tom Gorzelanny was placed on the 15-day disabled list, retroactive to May 8, with shoulder tendinitis in his pitching arm.