Shohei Ohtani allowed his first two home runs of the season to Christian Walker and Braden Shewmake, and Peter Lambert pitched seven strong innings to give the Houston Astros a 2-1 win over the Los Angeles Dodgers on Tuesday night. Lambert (2-2) allowed three hits and walked four with four strikeouts in his longest outing of the season. Walker sent Ohtani’s first pitch of the second inning to the train tracks atop left field to make it 1-0. There was one out in the second when Shewmake hit a fastball from Ohtani into the seats in left field to extend the lead to 2-0.