Murphy's dinger came in the first inning and began a Texas comeback after the Rangers spotted Detroit a 3-0 lead to start the game.
The win went to Rangers starter Colby Lewis (3-0), who lasted 6 1/3 innings, allowing seven hits and four runs and fanning 10.
The Tigers were led by Ramon Santiago, who got two hits, knocked in a run and crossed the plate once while Austin Jackson chipped in with his first career homer.
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