Davis left in the fifth inning with a left oblique strain. The severity of the injury was not immediately known, but Davis looked to be in obvious discomfort as he walked toward the dugout following a third-inning flyout. Davis led the majors with 53 home runs and 138 RBIs last season.
Ventura (2-1) had a career-high eight strikeouts and walked two in his seventh major league start. Greg Holland worked a perfect ninth to finish off the Royals' second shutout of the season.
Ubaldo Jimenez (0-4) allowed four runs and six hits in six-plus innings.
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