LOS ANGELES -- Yankees shortstop Didi Gregorius is considered day to day after sustaining a right shoulder contusion when he was hit by an 89.3-mph fastball from Clayton Kershaw in the first inning of Sunday's 5-1 victory over the Dodgers.

Gregorius was struck in the back of the right shoulder and initially remained in the game, but he was removed for a pinch-hitter when his spot in the batting order came up next in the third inning. Gregorius had X-rays, which were negative, and said that his throwing was being affected.

"I tried to fight it and stay in the game, but they were like, ¡®No, we¡¯ve got to take care of it before something else happens,'" Gregorius said.

It is unlikely that Gregorius will play on Monday, when the Yankees open a three-game series with the Mariners in Seattle.

"I think it's a bone bruise, but he's pretty sore," manager Aaron Boone said. "We'll treat it and kind of feel like it's probably a day-to-day thing. We'll see how he's doing [Monday]. Hopefully we avoided something serious."

Gregorius, who is batting .263 with 13 homers and 44 RBIs in 59 games, hit a grand slam and a solo homer in the Yanks' 10-2 rout on Friday. He went hitless in four at-bats during Saturday's 2-1 loss.

Mike Ford entered the lineup in Gregorius' spot and had a night to remember of his own, slugging a sixth-inning homer off Kershaw and adding a run-scoring double in the eighth off Pedro Baez.

"He came in big off Kershaw. That¡¯s a real good pitcher," Gregorius said. "He was ready to go since the beginning. I think that just shows we¡¯re ready to go, whenever the opportunity is."