Ryan McMahon's slam sparks Rockies to rout of Padres

Ryan McMahon's first-inning grand slam was the first of four homers hit by Colorado on Friday night as the visiting Rockies defeated the San Diego Padres 9-4.

The Padres, however, experienced an even bigger loss when shortstop Fernando Tatis Jr. sustained an apparent injury to his left arm or should while sliding into third in the first inning. He immediately left the game.

Tatis partially dislocated his left shoulder o