Yankees hold Anthony Rizzo (neck) out of lineup in Seattle

SEATTLE -- New York Yankees first baseman Anthony Rizzo was held out of the lineup due to a stiff neck for their series opener against the Seattle Mariners on Monday night.

Yankees manager Aaron Boone said Rizzo "should be fine," but the team was being cautious. Rizzo left Sunday's win over San Diego after he collided with Fernando Tatis Jr. on a pickoff play that ended the sixth inning.

As the first baseman leaned back to apply the tag, Rizzo collided with Tatis. Rizzo stayed on the ground for a few minutes and headed back to the clubhouse as the Yankees batted.

Boone said Rizzo was undergoing treatment and did not need any additional testing.

DJ LeMahieu shifted over to start at first base for New York on Monday night. The Yankees also sat slumping rookie shortstop Anthony Volpe and started Isiah Kiner-Falefa there.

Also, catcher Jose Trevino (hamstring) was set to undergo a full workout before Monday's game and there is a chance he could be activated during the series in Seattle, Boone said.

In the top of the third inning, New York outfielder Harrison Bader left the game against the Mariners with a hamstring injury. After legging out a single, Bader was met at first base by manager Aaron Boone and a team trainer before all three walked off together. Bader, 2-2 with a run scored before exiting, was replaced in center field by Greg Allen.

Third baseman Josh Donaldson (hamstring) is set to continue his rehab assignment on Tuesday with Double-A Somerset. Designated hitter Giancarlo Stanton (hamstring) could "possibly" join Donaldson, Boone said.

Carlos Rodon (forearm strain) also threw a bullpen session in Seattle on Monday. Boone said Rodon will probably throw a couple more on the trip with the hope of facing batters after the team returns to New York for a homestand that starts June 6.

Information from Reuters and the Associated Press was used in this report.