Yates (right hamstring) lands on IL in latest blow to LA's 'pen

12:23 AM UTC

LOS ANGELES -- Dodgers right-handed reliever left the mound on Saturday night with a trainer, and it will be awhile before he's back on it.

Yates was placed on the 15-day injured list with a right hamstring strain before Sunday's 6-4 loss in the Freeway Series, one day after exiting in the top of the seventh inning during Saturday’s 11-9 loss to the Angels at Dodger Stadium with tightness in the hamstring.

“He felt it on the throw. The assessment early is Grade 1,” manager Dave Roberts said Saturday. “I don’t see how it’s not an IL, just given a hamstring. But we’ll see how he comes in tomorrow.”

Yates was expected to undergo imaging on Sunday. Righty reliever , who signed a Minor League deal with the Dodgers a week ago, was selected from Triple-A Oklahoma City as the corresponding move. Trivino posted a 5.84 ERA across 11 appearances with the Giants and pitched one scoreless inning for the Comets before joining L.A.

Yates is the latest of several Dodgers relievers on the mend right now. Blake Treinen (right forearm strain), Michael Kopech (right shoulder impingement) and Brusdar Graterol (right shoulder surgery) are all currently on the 60-day IL, while Evan Phillips has been on the 15-day IL with right elbow inflammation since May 7.

At the moment, the only active right-hander in the Dodgers' bullpen who might get the ball in high-leverage situations is Ben Casparius, but he’s also needed to eat up innings and likely won’t be available to pitch again until the end of their upcoming series against the Diamondbacks, which begins Monday.

​​“That's going to be interesting," Roberts said Sunday. "Ben's kind of been a guy that pitches two, three innings, and so there's certain games that he's offline. We got Trivino here. He threw two innings today. He’s a guy that really handles [right-handers] well throughout his career. But he's going to be down for a couple days, giving us two innings. And we're just gonna have to piece it together."