Lohse dented manager Ron Gardenhire's office door, apparently with a bat, injured his finger and might have permanently fractured his already strained relationship with the Twins, the St. Paul Pioneer Press reported Thursday.
He also might have jeopardized his place in the rotation -- and on the team's roster.
Soon after leaving Tuesday night's game after giving up five runs in two innings, Lohse went into the clubhouse and damaged Gardenhire's door -- denting the metal door and breaking the doorknob -- and dented the door to the locker room next to the manager's office, according to the paper. Lohse said he was upset that the coaching staff didn't "stand behind me and say, 'We've got your back.' "
"It's about winning," Gardenhire told the paper in response to the tantrum. "If you don't understand that, take a hike out of the clubhouse, because we're going to try to win whether you've got somebody's back or not. Whatever that means."
Lohse, who has had a tenuous relationship with club officials over the past three years, underwent X-rays and was wearing a bandage on his right middle finger but told the paper if he missed his next scheduled start, Monday at Detroit, "it's not going to be because of" the injury to his finger. X-rays on the finger showed no damage.
Lohse said he was still in the starting rotation "as far as I know," but Gardenhire has expressed a desire to get prospect Francisco Liriano at least one start this season.
Lohse is not eligible to be traded because he didn't clear waivers; he won his arbitration hearing to earn $2.4 million this season and could become a free agent if a deal is not made this offseason, the paper said.
The 26-year-old right-hander is 8-12 this season with a 4.36 ERA.
Information from The Associated Press was used in this report.