Jered Weaver will undergo X-rays and an MRI on his back on Tuesday. Weaver left Monday's start against the Yankees after just 12 pitches due to what was described as a lower back injury. The team won't make a decision about a possible stint on the disabled list until the test results are known. "I really don't have any answers right now," Weaver said after Monday's game. "I've just got to wait for those MRIs and X-rays to come back. We'll keep our fingers crossed." If Weaver needs an extended absence, the Angels will likely call up Garrett Richards from Triple-A Salt Lake.