Javy Guerra (knee) will begin his rehab assignment with High-A Rancho Cucamonga on Sunday.

Guerra is working his way back from a knee surgery he had performed earlier this month. He should be able to return to the Dodger bullpen in a setup role right around the All-Star break.

Javy Guerra (knee) could begin a minor league rehab assignment Saturday.

Guerra had knee surgery earlier this month, but he has been throwing off the mound over the past week. Barring any setbacks, he should rejoin the Dodgers' bullpen prior to the All-Star break.

Javy Guerra threw off a mound Friday for the first time since knee surgery on June 5.

Good news. Guerra will likely need a few minor league rehab appearances, but he remains on track to rejoin the Dodgers' bullpen in early-to-mid July.

Javy Guerra (knee) has resumed pitching activities.

Guerra has been ''building up strength'' and throwing at a distance of 90 feet. He is expected to travel with the team to San Francisco on June 25, but won't be going to Oakland this coming week. It's unlikely he'll return to the Dodgers' bullpen until early-to-mid July.

Javy Guerra (knee) has been doing strength exercises for a few days and has already resumed playing catch.

Good news, as Guerra just had right knee surgery last Tuesday. However, it's unlikely he'll return to the Dodgers' bullpen until early-to-mid July.

Javy Guerra is expected to miss 4-6 weeks following surgery on right knee Tuesday morning.

Javy Guerra earned the win on Sunday by tossing a perfect seventh inning against the Cardinals.

Since blowing his last save on May 6, Guerra has posted 5 1/3 scoreless innings, as middle relief appears to suit him and Dodgers much better. As a result, his once monstrous ERA has dropped 176 points to 4.08.

Javy Guerra blew a save opportunity in Sunday's 11-inning loss to the Cubs.

Guerra came on in the ninth to protect a 3-2 lead. He struck out the leadoff man, but then gave up a single, a walk and a double for his third blown save of the year. Guerra has now given up runs in four of his last five outings and his ERA stands at 5.84. Kenley Jansen should be owned in almost all formats right now.

Manager Don Mattingly said Javy Guerra (foot) will be available to pitch Saturday.

"I would have used him in an emergency if I had to," Mattingly said. Guerra was cleared by the training staff before the game Friday, but was held out as a precaution. Kenley Jansen will return to his usual setup role.

Javy Guerra is dealing with a sore foot, an injury suffered from wrenching it as he was struck by a line drive in Wednesday's game.

He'll be re-evaluated after he throws on Friday, but isn't expected to need any time on the disabled list at this point. Guerra has struggled in his last few outings, and has to worry that this might open the door for Kenley Jansen to take over the closer's role. Stay tuned.

Dodgers manager Don Mattingly insisted Wednesday that Javy Guerra will remain the team's closer.

Guerra blew his second save of the season, was handed his second straight loss and also took a line drive off the face Wednesday night against the Braves. But he passed a concussion test and Mattingly has full confidence that the 26-year-old right-hander will be able to bounce back. Now is the time to add setup man Kenley Jansen, just in case Guerra doesn't turn it around.

Javy Guerra blew his second save and took his second loss in as many days in Wednesday's setback against the Braves, allowing three runs on five hits while recording just one out.

We could have a problem on our hands. Guerra has now allowed four runs and seven hits in just 1 1/3 innings in little more than 24 hours, ballooning his ERA from 2.16 to 5.59. Kenley Jansen, meanwhile, protected a 2-1 lead with a scoreless eighth inning this evening. Guerra should have one more life as the Dodgers' stopper, but if you're an owner with an extra roster spot, there's no time like the present to scoop up Jansen as a handcuff.

Javy Guerra took a loss after giving up a run in a tie game Tuesday against the Braves.

That's two losses for Guerra, but he still has just the one blown save. Until he blows a couple more, he shouldn't have to worry about Kenley Jansen's breathing down the back of his neck.

Javy Guerra struck out two over a scoreless inning against the Astros on Friday night en route to his seventh save of the season.

After blowing his first attempt of the season earlier in the week, Guerra has responded beautifully by recording saves on back-to-back nights. While Kenley Jansen apologists will argue that he's better suited for the job, Guerra has been awfully impressive thus far.

Javy Guerra rebounded from his first blown save with a perfect ninth Thursday against the Brewers.

Guerra struck out two (with a little help from the umpire on the one of Norichika Aoki) en route to his sixth save of the year. He's pitched scoreless innings in seven of his eight appearances.

Javy Guerra blew his first save of the season against the Brewers on Tuesday, surrendering two runs on two hits in just 1/3 of an inning.

Guerra had been perfect in his first five save chances, before falling apart in this one. After a single and a walk to start the inning, he struck out Jonathan Lucroy for the first out before pinch hitter George Kottaras laced a game-winning two-run double to right. Guerra has shown enough to be given some amount of leash, though Kenley Jansen is certainly lurking over his shoulder.

Javy Guerra notched his fourth save with a perfect inning Wednesday against the Pirates.

Kenley Jansen set him up by striking out the side in the eighth, but Jansen has made no in-roads on the closer's role yet, not with Guerra a perfect 4-for-4 with a 0.00 ERA to start the season.

Javy Guerra picked up his first save of the season Thursday, working a perfect ninth inning against the Padres.

Guerra, who has struggled with control issues in the past, threw nine of his 14 pitches for strikes. With his clean inning, along with Kenley Jansen serving up a two-run HR to Cameron Maybin in the 8th, Guerra's job security should increase. He may not be able to hold of Jansen all season, but his job appears safe for now.

Dodgers manager Don Mattingly confirmed Wednesday that Javy Guerra will open the year at closer.

"It's defined," Mattingly told the Los Angeles Daily News. "Javy's the guy. We know who the guy is right now." Kenley Jansen and his swing-and-miss stuff will be breathing down Guerra's neck from the outset, but the 26-year-old from Denton, Texas has an impressive arsenal of his own and could feasibly maintain the ninth-inning role throughout the entire 2012 campaign.

According to the Los Angeles Times, Javy Guerra will earn $488,000 this year if he spends the entire season in the majors.

Dodgers manager Don Mattingly expects Guerra to open this season at closer after posting a 2.38 ERA and 38/18 K/BB ratio over 46 2/3 innings. A.J. Ellis will also earn $490,000 in his first full season. The major league minimum salary is $480,000.