Jarrod Parker's Tommy John surgery on his right elbow has been moved up a day and will now be performed on Monday.

Dr. James Andrews will wield the scalpel in Florida during a procedure originally expected to take place on March 25. This is Parker's second Tommy John surgery. Once a death sentence for pitchers, recent studies suggest that success for pitchers coming off a second TJ procedure is rising. With A.J. Griffin (elbow) also on the shelf, Jesse Chavez and Tommy Milone are expected to fill the final two spots in Oakland's rotation.

Jarrod Parker will undergo Tommy John surgery on his right elbow on March 25.

Terrible news for the A's and Parker, who will be having the operation for the second time. He'll obviously miss all of the 2014 campaign but should have a shot to be ready early on in 2015. With A.J. Griffin (elbow) also on the shelf, Jesse Chavez and Tommy Milone are expected to fill the final two spots in Oakland's rotation.

Chris Cotillo of MLB Daily Dish reports that the Athletics don't believe Jarrod Parker has any structural damage in his arm.

He's visiting Dr. James Andrews on Monday as a precautionary measure to confirm that though. With Parker and A.J. Griffin slated to begin the season on the disabled list, there are suddenly openings in the A's rotation for Jesse Chavez and Tommy Milone.

Jarrod Parker is expected to open the season on the disabled list due to tightness in his right forearm.

Parker also dealt with tightness in his forearm at the end of last season, and it has cropped up again. The right-hander will visit Dr. James Andrews on Monday, at which point more should be known about his long-term status. The A's could also be without A.J. Griffin (elbow) for a while, so it's been a rough Friday for their rotation.

Jarrod Parker struggled in Monday's start, allowing four runs in 4 2/3 innings against the Dodgers.

Andre Ethier did the most damage, crushing a three-run home run to right field in the first inning. Overall, Parker allowed four hits and walked one while striking out five. His Cactus League ERA now sits at an ugly 10.61. Fortunately, he still has plenty of time to get into regular season shape.

Jarrod Parker issued one run over 3 1/3 innings of work against the Brewers on Wednesday.

Parker allowed two hits and two walks, an improvement over his previous start on Friday. He has been dependable for the A's over the last two seasons and is on track to start on Opening Day.

Jarrod Parker was annihilated in his Cactus League debut against the Giants on Friday, surrendering six runs on five hits in only 1 1/3 innings of work.

Parker also walked one, hit a batter and fanned two in the forgettable performance. Slated to be the Opening Day starter for the A's this season, the 25-year-old hurler still has plenty of time to work out the kinks before the regular season begins.

Susan Slusser of the San Francisco Chronicle reports that Jarrod Parker will pitch on Friday, and remains on track to get the nod on Opening Day.

The 25-year-old hurler struggled down the stretch in 2013, and has worked hard over the offseason to improve his conditioning to avoid a repeat. While he may be the listed as the A's top starter, his low strikeout rate keeps him as a third or fourth starter option in most mixed leagues.

Jarrod Parker said Saturday that he added five pounds over the winter and worked to improve his overall conditioning to avoid fatigue late in the season.

The 25-year-old right-hander certainly faded down the stretch in 2013, posting a 6.41 ERA, 1.39 WHIP and 16/6 K/BB ratio over 26 2/3 innings spanning five starts in September and October.

Jarrod Parker was diagnosed with a forearm strain.

Parker suffered the injury in his ALDS Game 3 start against the Tigers. He will not need surgery and should be recovered from the strain by the middle of winter.

Jarrod Parker will undergo an MRI on his right elbow.

Parker has been feeling some tightness, so the A's want to make sure nothing is seriously wrong. The right-hander noted that the tightness he's experiencing is not the same as what he felt prior to Tommy John surgery. We'll know for sure shortly whether it's something to worry about going into the offseason.

Athletics manager Bob Melvin said Tuesday that it looks like Jarrod Parker is battling some fatigue or dead arm symptoms.

Parker gave up three runs over five innings in Monday's Game 3 victory over the Tigers, but Melvin could tell he didn't look right. Assuming the A's win the series, Melvin will see how Parker responds over the next few days before making a decision about his availability moving forward.

Jarrod Parker yielded three runs over five innings in a win over the Tigers in Game 3 of the ALDS on Monday.

Parker only managed one strikeout, but he held the Tigers to five hits and one walk. This was the first postseason victory of his career. The A's will go for the series victory Tuesday when they send Dan Straily to the hill against Doug Fister.

Jarrod Parker was hit hard in Saturday's loss to the Mariners, surrendering seven runs on seven hits in only 4 1/3 innings.

Parker did manage to rack up four strikeouts while walking one. All of the damage against him came via the long ball, with Justin Smoak launching a two-run shot in the first inning, and Brad Miller connecting on a pair of homers including a grand slam. The 24-year-old wraps up his regular season with a 12-8 record, 3.97 ERA and 134/63 K/BB ratio over 197 innings. He'll try to put this one behind him and hope for better results in the postseason.

Jarrod Parker tossed six innings of one-run ball in Saturday's 9-1 rout of the Twins.

It was a refreshing outing from the 24-year-old right-hander, who got lit up in his return from an illness Monday against the Angels. Parker is now 12-7 with a 3.74 ERA, 1.21 WHIP and 130/62 K/BB ratio in 192 2/3 innings this season. He should finish strong next week on the road against the Mariners.

Jarrod Parker was rudely welcomed back to the mound by the Angels on Monday, as he surrendered eight runs -- seven earned -- over 4 1/3 frames.

Parker was scratched from his scheduled start on Sunday due to illness. He was reportedly feeling better, but the Angels may have induced a new wave of nausea. The right-hander surrendered eight hits and two walks in falling to 11-7 with a 3.81 ERA. Parker had allowed only 10 runs over his last seven starts. He has a good chance to bounce back this weekend against the Twins.

Jarrod Parker will start on Monday against the Angels.

Parker had to be scratched from his scheduled start Sunday due to illness, but he's evidently feeling much better. Sonny Gray had been slated to go for the A's, but he and the rest of the team's rotation will presumably just be pushed back a day.

Jarrod Parker could start for the Athletics in Monday's series opener against the Angels.

Parker was scratched from Sunday's scheduled start due to an illness, but could be cleared to return as early as Monday. It's unclear if Sonny Gray, Monday's scheduled starter, would be skipped in that scenario or if each of Oakland's starters will be given an extra day of rest.

Jarrod Parker was scratched from Sunday's start against the Rangers due to illness.

Parker was throwing up all morning, and the A's decided it was best to not push him. He should be ready to go in a couple days. Tommy Milone will fill in for Parker on Sunday.

Jarrod Parker allowed two runs over six innings of a no-decision against the Twins on Tuesday.

Parker left with a 3-2 lead and was in line for his 12th win before the Oakland bullpen suffered a rare blown save. Still, the quality start for Parker was eighth in a row, and the right-hander still hasn't suffered a loss since May 22. He'll carry an 11-6 record and 3.55 ERA into his start against the Rangers at Arlington on Sunday.