Twins sent RHP Vance Worley outright to Triple-A Rochester.
CBS Sports' Jon Heyman reports that the Twins have placed Vance Worley on waivers.
Vance Worley struggled again Wednesday, giving up four runs in 3 2/3 innings of relief work.
Vance Worley was lit up by the Pirates on Friday, allowing five runs and seven hits in 1 1/3 innings.
Vance Worley held the Orioles scoreless for three innings in his start Monday.
Vance Worley lost about 20 pounds over the offseason.
Twins general manager Terry Ryan said Friday that Vance Worley (elbow) has resumed playing catch without any issues.
Vance Worley has been placed on the 7-day disabled list with Triple-A Rochester due to right shoulder inflammation.
Vance Worley threw a five-hit shutout Monday in his first start with Triple-A Rochester.
Twins optioned RHP Vance Worley to Triple-A Rochester.
Vance Worley showed some signs of life Friday, as he limited the Red Sox to one unearned run over six innings as part of a no-decision.
Vance Worley picked up his first win of the year on Saturday night despite allowing five earned runs on 11 hits over 5 1/3 innings against the Orioles.
Vance Worley yielded six earned runs over 4 2/3 innings Tuesday in the Twins' loss to the Tigers.
Vance Worley held the White Sox to one run over seven innings Saturday in a Twins victory.