NEW YORK - It turns out Bradley Zimmer's injury may have been more serious than the Indians thought.

The Indians recalled outfielder Greg Allen from Class AAA Columbus on Sunday after Zimmer crashed into the center field fence Saturday chasing a double by New York's Austin Romine in the seventh inning of a 5-2 loss at Yankee Stadium. Zimmer left the game with a bruised left shoulder.

The Indians optioned right-hander Ben Taylor to Columbus to make room for Allen.

The move leaves the Tribe's depleted bullpen with just six arms. The Indians could use Josh Tomlin in an emergency, but he pitched seven innings on Friday.

"He hit the wall pretty good, but he was passing all the (concussion) tests last night," said manager Terry Francona. "We've all seen where you show up the next day (and concussion symptoms surface). So we got Greg Allen here and Zim showed up, he's fine concussion wise, he's good.

"But his hip and shoulder are pretty sore. So we'll let Greg play today and we optioned Ben Taylor because he wasn't going to be available today anyway. We'll get Zim a couple days to bounce back which will be good for him. Then we're got (Oliver) Drake waiting for us in Milwaukee so he'll take Taylor's spot and we'll send Greg back."

Zimmer went on the disabled list last year in September with a broken left hand. He was stepped on while in a headfirst slide into first base.

The 6-5 Zimmer plays aggressively and Francona has not asked him to change.

"I love it," said Francona. "I think there's a right way and a wrong way to play. I think that's the way you play the game.

"Obviously, you don't want guys to get hurt. But I don't know where you draw the line. Do we say to a guy, 'Just try to catch these balls?'

"It doesn't work that way. Just let guys play. Over the course of playing the game right, guys are going to get nicked up."

The Indians acquired right-hander Oliver Drake from the Brewers in a cash deal on Saturday. The Indians will travel to Milwaukee after Sunday's game and open a two-game interleague series at Miller Park on Tuesday after an off day Monday.

Allen, recalled for the second time this season, started in center field on Sunday. The switch-hitter is batting .260 (19-for-73) with eight doubles and three RBI at Columbus. He ranks third in the International League with 17 runs and is tied for sixth with six stolen bases.