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2/28/2014 2:05 P.M. ET

Sano to have sore right elbow examined

FORT MYERS, Fla. -- Miguel Sano, who is ranked the Twins' No. 2 prospect, was slated to have his right elbow examined by team doctors Friday afternoon after tweaking it while making a throw in Thursday's intrasquad game.

Sano, who was diagnosed with a strained ulnar collateral ligament in his throwing elbow this offseason while playing winter ball in his native Dominican Republic, was cleared to throw heading into camp. The third baseman didn't have any issues until Thursday, when he had to make a throw across his body on a slow grounder hit by catcher Kurt Suzuki.

The Twins remain hopeful the injury isn't serious, but they won't know more until Sano gets his elbow examined on Friday.

"He made that throw coming in off-balance, and he had a little bit of soreness and will get it checked out this afternoon," assistant general manager Rob Antony said. "When he came into the dugout, they asked him, because that was one of the throws we were going to keep an eye on. You can do it in workouts all you want, but until you get into game action and react and make a play. They asked him how it felt, and he said, 'I felt it a little bit on that one.' So they took him out of the game and he came in today was still a little sore."

Sano, ranked as the No. 4 overall prospect by MLB.com, was originally on the list to travel for the Grapefruit League opener against the Red Sox, but he was scratched because of the injury. Antony said the Twins hoped Sano's elbow issue wouldn't flare up this spring, but now that it has, they're doing their due diligence to get it checked out.

"It's not anything that's a complete utter shock," Antony said. "But unfortunately he felt a little something and we have to check it out and see where it's at. They'll take a look at it and see how it is, and we might have to make a decision sooner or later."

Diamond, Nolasco to make first starts this weekend

FORT MYERS, Fla. -- The Twins announced their rotation for this weekend, as left-hander Scott Diamond will start the home opener on Saturday against the Red Sox and right-hander Ricky Nolasco will start on Sunday against the Rays in Port Charlotte.

Diamond, who is competing for the fifth spot in the rotation along with Vance Worley, Samuel Deduno and Kyle Gibson, will make the first start at renovated Hammond Stadium on Saturday at 12:05 p.m. CT in a game that will be televised on MLB.TV and Fox Sports North.

Diamond is looking to bounce back this year after posting a 5.43 ERA in 24 starts last season. The 27-year-old fared much better as a rookie in 2012, when he had a 3.54 ERA in 27 outings.

Diamond is one of three pitchers out of Minor League options competing for the final spot in the rotation along with Worley and Deduno. But assistant general manager Rob Antony said a decision won't be a made on the fifth starter until much later in Spring Training.

"We're going to let it play out until we're comfortable with our decision with who it's going to be," Antony said. "So I wouldn't suspect that's going to make a quick call. I think it'll go late into camp."

Nolasco, who joined the Twins on a four-year deal worth $49 million this offseason, will make his debut on Sunday at 12:05 p.m. at Charlotte Sports Park. Nolasco has the inside track to be the club's Opening Day starter, but the team hasn't made an official announcement.

Twins agree to terms with all players on 40-man roster

FORT MYERS, Fla. -- The Twins agreed to terms with their remaining 27 players on contracts for the 2014 season, the club announced Friday.

A total of 13 pitchers signed this week, as the Twins agreed to terms with Logan Darnell, Samuel Deduno, Scott Diamond, Casey Fien, Kyle Gibson, Edgar Ibarra, Kris Johnson, Trevor May, Ryan Pressly, Brooks Raley, Caleb Thielbar, Michael Tonkin and Vance Worley.

The Twins also signed catchers Chris Herrmann and Josmil Pinto; infielders Chris Colabello, Brian Dozier, Eduardo Escobar, Pedro Florimon, Jorge Polanco, Danny Santana and Kennys Vargas; and outfielders Oswaldo Arcia, Aaron Hicks, Max Kepler, Chris Parmelee and Alex Presley.

All players on the 40-man roster are now signed to contracts for the upcoming season.

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.