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7/20/2013 10:51 P.M. ET

Thielbar sidelined with groin discomfort

MINNEAPOLIS -- Rookie reliever Caleb Thielbar is experiencing groin discomfort and is expected to be held out of action for the next few games, Twins manager Ron Gardenhire said Saturday.

Thielbar has been one of the club's most consistent relievers since making his big league debut on May 20. The left-hander has a 0.83 ERA in 21 2/3 innings. The Randolph, Minn. native has posted 21 strikeouts and has surrendered nine walks and just seven hits.

Right-handed reliever Jared Burton is expected to see an increased workload in Thielbar's absence, as he's bounced back from his struggles in June. Burton has recorded seven straight scoreless appearances to lower his ERA from 4.29 to 3.59 in 42 2/3 innings.

But right-hander Casey Fien will remain the club's top setup man for closer Glen Perkins, as he's working on a stretch of 10 straight scoreless outings entering Saturday.

"Casey is doing fantastic, and now we're getting stronger with Jared getting back out there," Gardenhire said. "Thielbar has a little bit of a tweaked groin, so we'll have to back off him for a few days. But those three have been throwing really well."

Colabello thankful for opportunity to help Twins

MINNEAPOLIS -- The Twins did not go into the All-Star break quietly.

Three struggling hitters -- Chris Parmelee, Eduardo Escobar and Oswaldo Arcia -- were sent to Triple-A, and two players were initially called up -- Chris Herrmann and Doug Bernier. The third player was not announced immediately, but most suspected that Chris Colabello would fill the spot.

It was a call he wasn't expecting, but sure enough, after a quick trip to Reno, Nev., for an appearance in the Triple-A All-Star game and the Triple-A Home Run Derby, Colabello began his third stint of the season with the Twins.

"I try not to think too much about what other people are making decisions about," Colabello said. "I just kind of go about my business every day the best I can. When you hear something, you hear something. If you don't, you don't."

Colabello was informed that the Twins were going to recall him prior to the official release. After the All-Star game and the Home Run Derby -- in which he admittedly hit poorly -- Colabello made his way straight to Minnesota from Reno.

Colabello served as the designated hitter and batted sixth in the Twins' first two games of the second half.

"We just want to see him get some swings," Twins manager Ron Gardenhire said. "The kid has done everything he can do at Triple-A. We've got a couple of kids scuffling up here. We're trying to get them straightened out, and he's earned a shot here to get some swings."

In 85 games with the Rochester Red Wings, Colabello had a .354/.432/.652 slash line with 76 RBIs. In the Majors, he is 2-for-20 in eight games.

In Friday's 3-2 win over the Indians, he went 0-for-4 with a strikeout, but he's trying to remain positive and simply make the most of his time in the big leagues.

"I'm just going to try and have as much fun as possible every day," Colabello said. "Play the game, help the team win some games. Every step I take from this moment on will be a great one in my mind, whatever happens. I'm thankful to this organization for giving me the opportunity they did. Whatever comes for me, comes for me. I'm looking forward to the opportunity to play. That's why I played the game my whole life."

But as Colabello starts to settle into his game, the biggest difference to him isn't the new level or increased competition, rather it's the 35,000 fans watching and the big scoreboards and screens that display highlights and replays throughout the game.

"Obviously, the guys on the mound are going to have a little bit better stuff, but at the end of the day, they still have to throw strikes," Colabello said. "You're competing with a baseball. You're not necessarily competing with the guy that's throwing."

Herrmann hopes his versatility will be an asset

MINNEAPOLIS -- Chris Herrmann, who was officially recalled from Triple-A Rochester on Sunday, said he's hoping his versatility will help him stick with the Twins.

Herrmann's primary position is catcher, but he has seen action at both left field and right field in Triple-A this year. He's played 180 career games in left and 17 in right, while catching 231 games over five seasons in the Minors.

"It helps out a lot," Herrmann said. "I talked to [manager Ron] Gardenhire, and he wants me out there playing left field again, and wants me to play some right field. So during batting practice, I'll be working in right field. And last time I was up here, they even had me take grounders at third base. So it's good for them to know that I can play multiple positions."

He fared well in his first stint with the Twins, hitting .462 with a homer, a double and four RBIs in seven games. But he was optioned on June 14, when third baseman Trevor Plouffe was activated from the 15-day disabled list.

So this time around, Herrmann is hoping to remain productive and have a longer stay with the Twins.

"Ultimately, it's their decision, but I'm going to take every chance I get and make the most of it," Herrmann said. "That's what I'm here for."

Worth noting

• Gardenhire left Saturday's 3-2 win over the Indians during the fifth inning with stomach pains, and he stayed in the Twins' clubhouse throughout the remainder of the game.

"He just felt stomach issues during the game, so he went out in the fifth, and the medical staff said he's fine, everything's perfect, nothing more than the stomach flu," Twins bench coach Terry Steinbach said.

There are no reports on whether Gardenhire will be back in the dugout for Sunday's series finale at Target Field.

Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. Kelly Erickson is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.