Jered Weaver left his start against the Yankees in the first inning Monday night after only 12 pitches and failing to record an out. The Angels announced Weaver suffered a lower-back injury. The right-hander will undergo an MRI and X-rays on Tuesday before a decision is made on whether he will be placed on the disabled list. "I've never felt anything like that before. It felt like somebody stabbed me in the back," Weaver said. "I couldn't really do much about it. It's very disappointing. You get motivated for games like this."