Twins released LHP Rafael Perez.
Perez, who underwent shoulder surgery last September, had been pitching at Triple-A Rochester in recent weeks, compiling a 2.25 ERA, 1.25 WHIP and 2/3 K/BB ratio over his first four innings of work. The 31-year-old lefty could draw some interest from teams looking for bullpen help.
Darin Mastroianni will undergo surgery on Wednesday to repair a bone chip on his left ankle, and will be sidelined for at least six weeks.
It was a very discouraging sign when Mastroianni, who was already progressing slowly in his recovery, was uncomfortable testing his ankle during light sprints on Wednesday. He shouldn't be expected to return to the Twins until after the All-Star break and can safely be dropped in deeper mixed formats.
An MRI taken Wednesday on Tim Wood's right shoulder showed no signs of major structural damage.
Wood is headed to Minnesota for a second look. The 30-year-old has posted an ugly 8.68 ERA in 9 1/3 innings this season between High-A Fort Myers and Triple-A Rochester. He is currently on the MLB disabled list.
Jamey Carroll went 3-for-4 with a double and two runs scored Wednesday against the White Sox.
Carroll also knocked in his fourth run of the season. The veteran was starting just his 11th game, though he has played a bit more of late. As rarely as homers and steals come for him, he needs to be an everyday guy to be useful in AL-only leagues.
Twins manager Ron Gardenhire expects to use Glen Perkins (side) in Wednesday's game.
Perkins hasn't pitched since last Thursday due to soreness in his left side, but it's no longer an issue. It appears that he'll get some work in regardless of the score.