MINNEAPOLIS -- Head trainer Rick McWane gave an update on Tuesday on injured Twins relievers Jose Mijares, Glen Perkins and Kevin Slowey.
Mijares threw a light session off the mound on Tuesday, and will throw in the bullpen on Wednesday.
"If that goes well, he'll go out on a rehab assignment somewhere this weekend," McWane said.
McWane added that Perkins is still making good progress with his strained right oblique.
Slowey, whose MRI on his oblique and abdomen came back negative on Monday, will see a doctor on Wednesday morning to check for a possible hernia.
Twins manager Ron Gardenhire was asked if he was expecting to make a move with Slowey going somewhere after Tuesday's game. Still unsure if Slowey had any sort of injury, Gardenhire indicated the decision would not come until after Slowey's visit to the doctor.
"I'm still waiting to see what we have," Gardenhire said. "He's going to see a hernia doctor, we're going to see if there's any issues there, and if that's clear, then we'll probably do something."
Mauer to DH in rehab game on Wednesday
MINNEAPOLIS -- Joe Mauer is slated to take another big step in his recovery from bilateral leg weakness when he plays in his first rehab game on Wednesday in extended spring training action in Fort Myers, Fla.
Mauer, who is still building leg and arm strength and isn't ready to start at catcher, is expected to get three or four at-bats while serving as designated hitter.
"He's just doing blocking drills and all those things," Twins manager Ron Gardenhire said. "But he's not going to throw for six or seven days, so he's just DH-ing. He's doing catching drills, and his legs feel great."
Gardenhire added that the training staff at the club's Spring Training complex has a target date for Mauer's return, but he wouldn't reveal the timetable.
"They have a schedule for him and a target date for when he'll come back, but if it has to be adjusted, it has to be adjusted," Gardenhire said. "But no, I won't tell you the target date."
Nishioka to play shortstop in rehab games
MINNEAPOLIS -- Infielder Tsuyoshi Nishioka is scheduled to play in his first rehab game on Friday in an extended spring training matchup in Fort Myers, Fla.
Nishioka, who fractured his left fibula on April 7, has been running the bases aggressively and has just one more final step to go before he's ready for game action on Friday.
"He's running the bases, and he'll do sliding drills on Thursday," Twins trainer Rick McWane said. "If all goes well -- and we anticipate it will -- he'll start playing in games on Friday."
Nishioka is slated to play shortstop in his first game, despite playing exclusively second base with the Twins during Spring Training and in seven games before his injury. He's also been working with Hall of Famer infielder Paul Molitor on turning double plays and will likely see action at both shortstop and second base in rehab games moving forward.
"He'll be able to see everything, and it'll be more in front of him for double plays and all those things," Gardenhire said about Nishioka starting out at shortstop. "Molitor is down there right now, and they're working on drills from both sides. So we'll start him out at shortstop and mix him to the other side eventually."
Nishioka is expected to play in at least 10 rehab games before being activated from the disabled list. Gardenhire added Nishioka will also see time with Triple-A Rochester to see better pitching before he rejoins the Twins.
Cuddyer sits on Tuesday; Young in lineup
MINNEAPOLIS -- After leaving Monday's game with tightness in his right hip, Michael Cuddyer said he felt better on Tuesday, though he still remained out of the Twins lineup.
Cuddyer injured the hip during his sixth-inning at-bat on Monday, saying he felt it grab after a foul ball. He went through all his usual pregame activities before Tuesday's game against the Mariners and hopes to return soon.
"He felt good about the activities we did inside; he's out here now testing it out to see how it goes," head trainer Rick McWane said Tuesday during batting practice. "He doesn't anticipate that it's going to be a major problem, and he could be available [Wednesday]."
Left fielder Delmon Young, who also left Monday's game with an injury, was back in the lineup on Tuesday. Young had a shin contusion after fouling a ball off his leg in the sixth inning, but felt good enough to play Tuesday night.
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. Jordan Schelling, an associate reporter for MLB.com, also contributed to this story. This story was not subject to the approval of Major League Baseball or its clubs.