DETROIT -- Right-hander P.J. Walters made his first rehab start with Triple-A Rochester on Sunday, and he's scheduled to make a second rehab start on Friday.

Walters, who was placed on the disabled list with right shoulder inflammation on June 14, struggled in the early innings against Triple-A Scranton/Wilkes Barre.

He gave up two runs in the first inning and threw just one first-pitch strike to the first seven batters he faced. But he settled down and ended up surrendering three runs on five hits over four innings.

"He threw 40 strikes and 30 balls, so he was misfiring," Twins manager Ron Gardenhire said. "He got better as the game went along so he was rusty. So that tells me probably another start. He started locating it better at the end, but he couldn't locate his fastball early."

Gardenhire said there's still a chance Walters might make one more rehab start after Friday, because the Twins are off from July 9-12.

Walters, 27, posted a 5.40 ERA in seven starts before being placed on the DL on June 14 after allowing four runs without recording an out against the Phillies on June 13.

Capps throws for first time, to start rehab soon

DETROIT -- Twins closer Matt Capps played catch Monday for the first time since receiving a cortisone shot in his right shoulder last week.

Capps, who is on the disabled list retroactive to June 24 with inflammation in his right shoulder, is planning on making a rehab appearance with Class A Fort Myers on July 10 or 11. He's tentatively scheduled to throw his first bullpen session this weekend.

The hope is that Capps will be ready to rejoin the Twins after the All-Star break since their first game after the Midsummer Classic is Friday, June 13, against the A's.

"What he'd like to do is go to Florida and go home to Bradenton, [Fla.], over the All-Star break and pitch an inning with the Miracle on a rehab," Twins assistant general manager Rob Antony said. "Hopefully, all will go well and he'll be ready to return right after the break."

Capps has a 3.42 ERA with 14 saves in 27 appearances this season. He initially felt discomfort in his shoulder against the Brewers on June 15 and took a week off before suffering a setback in an inning against the Reds on June 23.

Twins ink Dominican infielder Minier

DETROIT -- The Twins agreed to terms with Dominican infielder Amaurys Minier on a $1.4 million deal on Monday, the first day teams were eligible to sign international free agents.

Minier, who ranks No. 4 on MLB's International Prospect list, is a switch-hitting infielder with power from both sides of the plate.

The 16-year-old is currently a shortstop, but could move to third base. He's already 6-foot-2 and 190 pounds.

"That was the big one that we were chasing," Twins assistant general manager Rob Antony said. "We like his bat, and we like his power."

Minier is eligible to play in the Minors next season, but the contract begins in 2012. He's free to work out with the organization's Dominican Summer League this year, but can't play in any games.

In accordance with the new Basic Agreement, the international system now operates with money pools and penalties for teams that exceed their pools. For the 2012-13 signing period, every team will have the same pool of $2.9 million. Starting in 2013-14, the pools will be based on the prior season's winning percentages, with a range of approximately $1.7 million to $4.8 million.