Matt Guerrier headed to DL

LOS ANGELES -- The Los Angeles Dodgers placed veteran reliever Matt Guerrier on the 15-day disabled list on Tuesday with right-elbow tendinitis and recalled left-hander Michael Antonini from Triple-A Albuquerque.

Antonini, 26, who was in the Isotopes' starting rotation, will pitch out of the bullpen for the Dodgers and will be making his major league debut the first time he is called upon.

Guerrier has been suffering from elbow discomfort all season, Dodgers manager Don Mattingly said. The primary concern was how he was feeling on the days after he pitched. Guerrier has a 2.70 ERA in seven appearances and has been mostly effective this season, but he has pitched on back-to-back days only once.

Guerrier most recently pitched last Wednesday in Milwaukee, so the move was made retroactive to Thursday, making him eligible for activation on May 4 when the team is in Chicago. Mattingly said the medical staff is hopeful that Guerrier, who underwent an MRI exam and was given a platelet-rich plasma injection on Tuesday, will be ready by that time.

"We think that," Mattingly said. "(Trainer) Sue (Falsone) obviously thinks that PRP injection will help with the inflammation in there, and we'll go from there."

Originally drafted by the New York Mets out of Georgia College in the 18th round in 2007, Antonini came to the Dodgers in an offseason trade for infielder Chin-lung Hu two winters ago and was added to the 40-man roster a year later.

He had been mostly solid at Albuquerque, going 1-0 with a 4.26 ERA in what essentially were four starts, although one was technically a five-inning relief appearance. His somewhat inflated ERA is mostly the result of a single rough outing on April 16 against Omaha in which he gave up seven runs in 3 1/3 innings. He last pitched on Saturday at Oklahoma City, going 5 2/3, and should be available out of the bullpen immediately.

Antonini said he got the news of his call-up in a 1 a.m. phone call from Isotopes manager Lorenzo Bundy in Oklahoma City, where the team was playing. But his initial big league call-up could be a short one. Reliever Todd Coffey, who has been on the 15-day DL since April 14 with right-knee inflammation, is scheduled for a two-appearance rehabilitation assignment at Class A Rancho Cucamonga on Wednesday and Friday and will be eligible to return on Sunday.