Before those two dramatic extra innings, Ohtani started the day by issuing five walks and getting only five outs before getting pulled from his second rough start of the season.
That first inning was outstanding, said Angels manager Joe Maddon, who apparently wasn't aware Ohtani was headed for an MRI during his postgame interview.
Any sustained absence would be a double blow to the struggling Angels, who use Ohtani as their designated hitter on most days between his pitching starts.
After a strong eight-pitch first inning, Ohtani walked his first three batters of the second.
UP NEXTAstros: Baker hasn't said who will start Tuesday night when the Astros open a three-game series at Arizona.