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6/9/2013 9:30 P.M. ET

Hicks exits nightcap after straining left hamstring

WASHINGTON -- Aaron Hicks left the second game of Sunday's doubleheader against the Nationals with a left hamstring strain. He is day to day.

Hicks left the game in the bottom of the fifth inning after a 12-minute rain delay and was replaced by Clete Thomas in center field.

The injury came after Hicks tried to beat out a soft grounder to third base in the top of the fifth inning. Hicks was thrown out by Ryan Zimmerman on the play and went back out to center field for the bottom of the inning.

But with right-hander Samuel Deduno pitching to Roger Bernadina, a sudden downpour fell on Nationals Park to force a short delay. When play resumed, Thomas replaced Hicks in center.

"It's a strained hamstring,so I'll be reevaluated tomorrow," Hicks said. "I felt it when I hit the bag. I tried to play and then the rain came down and I came back in, and I was told to ice up."

Twins call up Colabello for doubleheader

WASHINGTON -- Chris Colabello was recalled from Triple-A Rochester on Sunday to be the Twins' 26th man on their roster for their doubleheader against the Nationals.

The Collective Bargaining Agreement allows for a team to call up a player without a corresponding roster move for doubleheaders, as long as the game is scheduled at least 48 hours in advance. The Nationals and Twins were rained out on Friday, so both teams were allowed a 26th man.

It marked the third time this season that Colabello was recalled from Rochester, but his stay was a short one. He was optioned back to Rochester after the Twins lost both games in the doubleheader. He went 0-for-1 as a pinch-hitter.

He's been Rochester's best hitter this year, batting .353 with 12 homers and 41 RBIs in 50 games. He's 2-for-15 in six games with the Twins this year.

He was also named the organization's Minor League Player of the Month for May on Sunday, after hitting .425 with six homers and 20 RBIs in 20 games. Left-hander Aaron Thompson was named Minor League Player of the Month after posting a 1.26 ERA over 11 appearances with Double-A New Britain and Triple-A Rochester.

Mauer gets some rest in Game 1 of twin bill

WASHINGTON -- After catching 11 innings in Saturday's 4-3 win over the Nationals, Joe Mauer started out Game 1 of Sunday's doubleheader on the bench, with Ryan Doumit getting the start at catcher.

Left fielder Josh Willingham was also out of the lineup for Game 1, but both players were expected to be back in the lineup for the second game of the twin bill. Clete Thomas started in left in Willingham's place.

"Joe caught 11 innings, so I have to take him out of one of the games -- and so that's a challenge," Twins manager Ron Gardenhire said. "But you just have to figure out a lineup. There are a few guys out there who feel a little ouchey, so you can get them through one [game] but not two."

Mauer also reached a milestone on Saturday, when he connected on the 100th homer of his career. It was also his sixth homer of the year.

"It's a big moment for anybody -- 100 home runs," Gardenhire said. "We know what he is. He's a high-average hitter, a batting champion, and he can do that every once in a while."

Burton expects to be available despite groin tightness

WASHINGTON -- Reliever Jared Burton said he felt a twinge in his left groin while pitching in Saturday's 4-3 win over the Nationals, but said he expects to be available to pitch on Sunday.

Burton threw a scoreless ninth inning, retiring all three batters he faced, but said his cleat got caught on the mound and caused him to experience some tightness in his groin.

"I think my cleat got hung up when I was facing the second hitter," Burton said. "On the last pitch I threw to him that I struck him out on, I felt a little hesitation there, and on the last hitter I felt some fatigue there. But it feels good today. I went out and threw, so I should be fine."

Burton said it was also nice to bounce back after giving up four runs in his previous outing against the Royals on Thursday.

"It was great," Burton said. "I try to stay as even keeled as possible throughout the year. Once I left the clubhouse in Kansas City the other night, I tried to leave everything there. So it was a clean slate, and I was able to come in yesterday and throw a 1-2-3 inning."

Prospects Sano, Rosario promoted to Double-A

WASHINGTON -- Top prospects Miguel Sano and Eddie Rosario were both promoted to Double-A New Britain from Class A Advanced Fort Myers on Sunday.

Sano, ranked as the No. 11 overall prospect by MLB.com, hit .330/.424/.655 with 16 homers and 48 RBIs in 56 games with the Miracle. The 20-year-old third baseman also homered twice on Sunday against Bradenton.

Rosario hit .329/.377/.527 with six homers and 35 RBIs in 52 games at Fort Myers. The 21-year-old second baseman also homered Sunday and is ranked as the club's No. 6 prospect, according to MLB.com

"It's just something we were monitoring the last couple months, and they improved defensively and had good first halves offensively as well," Twins farm director Brad Steil said. "We thought they accomplished enough to move up to Double-A and tackle the next challenge."

The Twins also promoted outfielder Angel Morales from Fort Myers to New Britain and infielder James Beresford from New Britain to Triple-A Rochester.

Worth noting

• Third baseman Trevor Plouffe will begin a rehab assignment with Triple-A Rochester on Monday. Plouffe, on the disabled list retroactive to May 28 with a strained left calf, is eligible to return from the DL on Thursday.

• Right-hander Alex Meyer, who was acquired in the trade that sent Denard Span to the Nationals, was placed on the 7-day Minor League disabled list with a strained right shoulder on Sunday. Meyer, ranked the No. 40 overall prospect according to MLB.com, has a 3.69 ERA with 73 strikeouts and 27 walks in 61 innings at Double-A New Britain.

Meyer has yet to have an MRI exam on his shoulder and was placed on the DL for precautionary reasons, according to Steil. The injury is not believed to be serious, as he's just experiencing shoulder soreness.

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