Wingenter takes comebacker off arm, exits

Wingenter exits game with injury SAN DIEGO -- Promising rookie Trey Wingenter departed Thursday's game against the D-backs after being hit by a line drive on his pitching arm.

Wingenter had recorded one out in his second inning of relief when A.J. Pollock lined a 95-mph fastball back to Wingenter. The comebacker -- measured at an exit velocity of 101 mph -- struck Wingenter on his right arm.

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Wingenter, who was called up for his Major League debut on Aug. 7 in hopes of further boosting one of the National League's best bullpens, had made four career appearances prior to Thursday's. He's given up one earned run in four innings and had struck out the side for the first…