The division-leading Milwaukee Brewers have their sights set on playing in the post-season, just not Jim Henderson.

The relief pitcher from Calgary has had a procedure to clean up the labrum and rotator cuff in his right (throwing) shoulder and will require about four months of recovery time.

"Round 2!" Henderson posted to his Twitter account along with a photo of himself smiling on a hospital bed.

The 31-year-old failed on several occasions to return to the Brewers after being placed on the disabled list on May 2 with shoulder inflammation.

It was a tough season for Henderson, who never regained the form that allowed him to convert 28 of 32 save chances in 2013.

His velocity in spring training didn’t return to the mid-to-high 90s miles per hour, he lost his closing role to Francisco Rodriguez the day before the start of the season, was put on the DL and then experienced a setback in the first of three scheduled rehab appearances.

Henderson’s season ends with a 2-1 record, 7.15 earned-run average and 17 strikeouts in 11 1/3 innings pitched. His WHIP (walks and hits per innings pitched) was an unsightly 1.59.

Henderson faces an uphill battle following his second shoulder operation.

"It's a tough road," Brewers manager Ron Roenicke told the Milwaukee Journal Sentinel. "Rehabbing is always tough. I'm sure he's got questions about whether he's going to come back or not. That's a tough thing to go through. Not a good year for it.

"Mentally, you get through it, and hopefully you heal up physically and are able to get back out there."

Henderson said his shoulder had been durable since his previous procedure in 2008 when he was a member of the Chicago Cubs organization.

“I feel like I've been staying on top of it and been good with it,” he said in May. “So for this to happen six years later, it's a little frustrating.”