Phoenix, AZ (SportsNetwork.com) - Left-hander Dontrelle Willis, who hasn't appeared in a major league game since 2011, intends to end his comeback bid and is expected to retire.

Milwaukee Brewers manager Ron Roenicke made the announcement on Friday.

It was back in January Willis signed a minor league contract with the Brewers.

"That's his plan, is to retire," Roenicke said during a press conference. "He just said the physical part of it, coming in and trying to get out there on the field, has worn on him. I think that's always tough. The physical part of it, he's been battling that for I don't know how many years. It wears on you mentally."

The 33-year-old Willis made 13 starts for the Cincinnati Reds in 2011, going 1-6 with a 5.00 earned run average.

The 2003 NL Rookie of the Year and two-time All-Star, Willis has a career 72-69 record with a 4.17 ERA in 205 games -- 202 starts -- with the Marlins, Tigers, Diamondbacks and Reds. Willis was a 22-game winner in 2005, the year in which he was the runner-up to Chris Carpenter for the NL Cy Young Award.