Outfielder Shin-Soo Choo's broken thumb could mean the end of his season, a damaging blow for a Cleveland team trying to win the division.

Choo was hit by a pitch at San Francisco on June 24. He had surgery Tuesday and is expected to miss eight to 10 weeks.

If he misses the rest of the season, it would end a horrible run for Choo, who got off to a bad start, was arrested for drunken driving in early May and was batting .244 with five home runs and 28 RBI when he was injured.

The Indians are expected to search outside the organization for an inexpensive outfielder.

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Detroit lefthander Daniel Schlereth gave up two grand slams Tuesday, becoming the second Tigers pitcher and 13th pitcher all-time to do so. The other Detroit pitcher to do so was Jack Morris on Aug. 7, 1984.

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The White Sox pitching staff, despite some hiccups in the bullpen and John Danks struggling before getting injured, lowered its ERA in June from 4.12 to 3.84. Former Twins righthander Phil Humber had a 3.06 ERA on June 1 and lowered it to 2.89 by Friday.

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Outfielders Jeff Francoeur and Melky Cabrera, pitchers Bruce Chen and Jeff Francis and infielder Wilson Betemit should be among Royals players other clubs inquire about leading up to the July 31 trade deadline.