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09/04/12 3:56 PM ET

Willingham returns to lineup in Chicago

CHICAGO -- After sitting out Sunday with a sore hamstring, Josh Willingham returned to the starting lineup for Monday's series opener against the White Sox.

Willingham served as the designated hitter, batting fourth.

"He says he's good to go," Twins manager Ron Gardenhire said. "The trainers said their preference is to have him DH rather than play out there in left today and then we'll see tomorrow.

In his first season with the Twins, Willingham is two RBIs shy of tying his career high of 98 set last year.

Prospects Escobar, Perdomo join Twins

CHICAGO -- Infielder Eduardo Escobar and right-hander Luis Perdomo joined the Twins on Tuesday.

Escobar, 23, was acquired by the Twins along with left-hander Pedro Hernandez from the White Sox on July 28 for lefty Francisco Liriano.

The versatile Escobar played in 36 games with the White Sox this season, batting .207 with two stolen bases and a triple. He has spent his entire Twins tenure at Triple-A Rochester, where he hit .224 with three triples in 36 games.

Twins manager Ron Gardenhire said he's excited for his first extended look at Escobar, who can play third base, shortstop and second.

"We haven't seen him and this is our opportunity to get a good look at him and see what he can do around here," Gardenhire said. "It's exciting to get him up here. We'll use him in all kinds of roles -- short, third -- and just look at him all around, get him some swings and let him have some fun and get to know him a bit."

General manager Terry Ryan said Escobar will get a long look this month as the club deciphers where he fits in its plans for next season.

While the Twins will be getting their first look at Escobar, the 28-year-old Perdomo joins Minnesota for the second time. Perdomo, who signed as a free agent last November, allowed one earned run in six innings spanning five games from July 28-Aug. 14.

"He's got a rubber arm, he certainly gives us a lot of protection in that bullpen," Ryan said. "We haven't seen him a bunch up here, so we want to get a look at him as well."

Escobar and Perdomo join outfielder Matt Carson and right-handers P.J. Walters and Esmerling Vasquez as recent additions to the club. Ryan said those players, as well as the anticipated return of Denard Span (right shoulder), likely will be all the roster moves for the Twins.

Twins would like Dozier to play winter ball

CHICAGO -- Minnesota's expected addition of infielder Eduardo Escobar on Tuesday means shortstop Brian Dozier will not rejoin the Twins this season.

Dozier, 25, struggled in the Majors, hitting .234 in 84 games before being demoted to Triple-A Rochester. His struggles have continued there, as he's batted only .205 in his last 10 games.

Twins manager Ron Gardenhire said reports have been that Dozier's swing is "still inconsistent," though he said just because Dozier isn't rejoining the Twins this season doesn't mean he's out of their plans.

"I like the young guy. I like the way he goes about his business, I think he's got a bright future," Gardenhire said. "I think he's going to be a part of our future, a big part of our future."

As for Dozier's immediate future, Gardenhire and general manager Terry Ryan each hope it includes winter ball, though nothing has yet been set.

"I haven't talked to Dozier about winter ball yet," Ryan said. "That's one of those you'd like to have the player come to you. I think that would be a beneficial piece to his season, but that's up to the player."

Worth noting

• Although the Twins don't know if shortstop Brian Dozier will participate in winter ball, general manager Terry Ryan said the clubs expects to, "have a pretty strong contingent south." Ryan said the Twins will announce who is participating as soon as the players report.

• Ryan said outfielder Denard Span (right shoulder) had a good day Monday and is "making some progress."

• Triple-A Rochester manager Gene Glynn is expected to join the club Friday in Minnesota.

Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.