The Angels have placed closer Brian Fuentes on the 15-day disabled list retroactive to April 6, making him eligible to return on April 21.

Fuentes said he tweaked a muscle mid-back on the left side on April 6 after making a save in the season opener the day before. He has not pitched since but feels he is mending and threw again, playing catch, for the first time on Tuesday and again before Wednesday’s game against the Yankees at Yankee Stadium.

Fernando Rodney, Scot Shields and Kevin Jepsen are expected to share ninth-inning duties until Fuentes returns. Rodney was 37 for 38 in save opportunities for Detroit last season and likely will get first call, manager Mike Scioscia said.

“I was lifting weights — I just picked up a dumbbell, and it was a freak thing,” Fuentes said. “I didn’t have a lot of weights. I saw a chiropractor, and he said he didn’t believe anything was structurally wrong. It’s a tissue issue. With the rehab we’ve done, it seems to be getting better.”

The Angels recalled outfielder Reggie Willits from Class A Rancho Cucamonga, where he was rehabbing a strained hamstring, and reliever Francisco Rodriguez from Triple-A Salt Lake while reliever Bobby Cassevah was returned to Salt Lake.

Another move will be required on Thursday when Scott Kazmir is activated to start the series finale against the Yankees. Kazmir pitched a rehab game at Rancho Cucamonga on Friday after experiencing left shoulder tightness on March 25 and missing a turn in the rotation.– Lyle Spencer

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