Harden told Antony he was done throwing live batting practice sessions because of ongoing shoulder pain. The 31-year-old right-hander had been throwing BP at the Twins' complex in Fort Myers, Fla., in an attempt to pitch for the first time in the Major Leagues since Sept. 25, 2011.
The Twins signed Harden, who started in three postseason series for Oakland and the Chicago Cubs, as a free agent last December. That was after shoulder surgery caused him to miss all of 2012.
"He's had a lat [muscle injury], a shoulder [injury]; he's had a variety of things," Antony said in the Twins' clubhouse at Safeco Field before Sunday's series finale in Seattle. "He couldn't get healthy."
Antony said retirement was a distinct possibility for Harden, who has been the disabled list 10 times in a career that began as a 21-year-old starter for Oakland in 2003. For now, Harden will take a couple of months off from throwing to reassess his comeback chances.
Harden is 59-38 with a 3.76 ERA and 949 strikeouts in 928 1/3 career innings in seven seasons with the A's, two with the Cubs and one (2010) with the Rangers. He has been plagued by shoulder, back, trunk, elbow and latissimus dorsi injuries. The latter one cost him the first 82 games of his lone return season with Oakland in 2011.
Gregg Bell is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.