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Los Angeles Angels of Anaheim starter Jered Weaver will land on the 15-day disabled list, he told Mark Saxon of ESPNLosAngeles.com. The right-hander learned from X-rays and an MRI that he has a strained muscle and some inflammation near a disc in his back. He left his start against the New York Yankees on Monday in the first inning after the malady struck.

Roto players will be happy to learn that this doesn't sound like a serious concern. Weaver anticipates missing only two or three starts. The Halos may opt to err on the side of caution, considering the unpredictable nature of back injuries and the importance of the hurler to the club.

The Angels recalled from Triple-A Salt Lake Garrett Richards, who'll take Weaver's place in the rotation. The 24-year-old righty is 5-2 with a 4.31 ERA, a 7.67 K/9 and a 4.63 BB/9 for the Bees.

Richards is one of the organization's best pitching prospects and staked his claim to the big club's fifth rotation spot this past spring with a strong exhibition effort. He made his debut last year, when he pitched 14 innings in seven games (three starts) and posted a 5.79 ERA, a 5.79 K/9 and a 4.50 BB/9.

That September call-up was Richards' first exposure to competition above the Double-A level. Prior to that, he didn't issue walks very often. His 4.63 BB/9 in the Pacific Coast League this season and the free passes he handed out in the majors suggest that the elevated level of competition has been a problem. At least, that has been the case this month (18 walks in 25 2/3 innings).

Richards is smart and has the stuff to strike out seven per nine in the bigs. The combination of an expected short stay this time around and his recent control problems don't make him an attractive gamble for mixed leaguers, however. In very deep leagues where stashing players with moderate upside but without a clear avenue is part of the strategy, Richards might still merit a spot. He remains a long-term alternative to Jerome Williams.