Yu Darvish (3-1) struck out 10 and allowed only three hits over seven innings, but the game was in doubt until Texas broke loose with its big inning.
The Rangers sent 10 men to the plate in the fifth with all the runs being charged to starter Joe Saunders (1-2).
Baker also hit a home run in the second, the 38th of his 11-year career. Only once has Baker had more than five home runs in a season.
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