Mariners trainer Rob Nodine said Thursday that he doesn't expect Stephen Pryor (lat) to be game-ready until several months into the season.

Pryor is recovering slowly from last August's surgery that involved his right lat being re-attached. He just recently resumed throwing and will be brought along slowly. "There's been very few of these injuries that have been surgically repaired," Nodine said. "A lot will depend on when he ramps up his throwing program and gets off the mound. Hopefully it will be somewhere around the end of May, we're guessing, but we'll see how that goes. We're not going to hold him to a timetable, just because we want to see how this progresses."

Mariners general manager Jack Zduriencik said this week that Stephen Pryor (triceps) should be able to participate at some point during spring training, though his availability for Opening Day remains in question.

It's still encouraging news for the 24-year-old hurler who underwent surgery in mid-August to re-attach his right lat. The injury limited him to just seven games with the M's in 2013, but he excelled in those chances, tossing 7 1/3 shutout innings while posting a 7/1 K/BB ratio. He should work in a setup role in front of closer Danny Farquhar upon returning, and could be a candidate to seize that role at some point during the season.

Stephen Pryor recently underwent surgery to re-attach his right lat.

It's the same procedure that Jake Peavy had a couple years ago, though Pryor's surgery wasn't as extensive. He's expected to need six months of recovery time, so he should be ready sometime during spring training.

Stephen Pryor has been shut down for the season after an MRI revealed a tear in his right triceps.

He'll receive a second opinion before the Mariners decide whether he needs surgery. Pryor has been on the disabled list since mid-April due to a lat issue and will finish the season having only appeared in seven games. He should be fine for spring training.

Stephen Pryor (lat) is expected to begin a rehab assignment Tuesday with Low-A Everett.

Pryor, on the disabled list since mid-April, was cleared after making it through a simulated game on Saturday. "We're going to send him out this week," manager Eric Wedge said. "We need to give him some time, but he's looked good the last couple outings."

Stephen Pryor (lat) will throw another simulated game on Saturday.

Pryor's first simulated game on Wednesday went well. The righty has been out since mid-April with a strained right lat but appears close to beginning a rehab assignment.

Stephen Pryor (lat) will throw a simulated game on Wednesday.

Pryor has been out since mid-April with a strained right lat, and it appears he's finally making some progress. The hard-thrower's timetable is unclear, but it appears he could be a factor for the Mariners in the second half.

Mariners transferred RHP Stephen Pryor from the 15-day disabled list to the 60-day disabled list.

Pryor now won't be eligible to return until mid-June, but he wasn't going to be ready before then, anyway. The hard-thrower recently resumed his throwing program but has yet to test things out from a mound.

Stephen Pryor (lat) resumed throwing this past week.

Pryor has played short catch from 45 feet three times. He's recovering slower than expected from a lat strain but is hoping to throw from a mound before long. "I'm kind of testing the waters to see how it feels," Pryor said. "Then we'll lengthen it out as far as distance and amount, and I'll see how I hold up. Then I'll get on the mound from there."

Mariners manager Eric Wedge said Stephen Pryor (lat) "is making good progress, but it's still going to be a while."

Pryor is coming back from a strained side muscle, which he suffered on April 14. "Being such a big guy and how he throws, it's going to be a while," Wedge added. It's not clear when the right-hander might be ready for a rehab assignment.

Stephen Pryor will not require surgery to repair a right lat tear.

It's good news, though the Mariners still aren't sure how long the reliever might be sidelined. Pryor was off to a terrific start before getting injured, having tossed 7 1/3 scoreless innings while striking out seven.

Mariners placed RHP Stephen Pryor on the 15-day disabled list with a right lat tear.

It's a shame, as Pryor was off to a terrific start, having tossed 7 1/3 scoreless innings while striking out seven. It's not clear at this point how long he'll be out. The Mariners won't announce a corresponding move until Tuesday.

Stephen Pryor left Sunday's game with a right lat strain.

Pryor was injured during a relief appearance and will be reevaluated Monday. He didn't allow any runs over 1 1/3 innings before being removed.

Stephen Pryor picked up his third win since joining the Mariners by getting two outs Wednesday against the Indians.

Pryor has made just 13 appearances, all in relief, for Seattle, but he's been in the right place at the right time so far. In 13 major league innings, he's allowed three runs, all of them coming on solo homers.

Mariners activated RHP Stephen Pryor from the 15-day disabled list; optioned him to Triple-A Tacoma.

Pryor was expected to immediately rejoin the Mariners' bullpen in a setup role, but will work himself back into form at Triple-A before doing so. The Mariners' potential "closer of the future" has posted a 1.69 ERA through his first 5 1/3 innings in the big leagues. He'll be up soon enough.

Stephen Pryor (groin) has moved his rehab assignment from High-A High Desert up to Triple-A Tacoma.

Pryor struggled in his first rehab appearance but rebounded with three strikeouts over two perfect innings Wednesday. He should rejoin the Mariners in a setup role soon.

Stephen Pryor (groin) threw a simulated game on Friday and will begin a rehab assignment with Class-A High Desert on Sunday.

After he pitches in a few games with the Mavericks, he'll head to Triple-A Tacoma before returning to the Mariners bullpen. He's been impressive in limited action, posting a 1.69 ERA through his first 5 1/3 innings with the Mariners, and will return to a setup role in the bullpen upon his return.

Stephen Pryor (groin) played long toss from up to 110 feet Tuesday.

It's his first bit of throwing since landing on the DL with a strained left groin muscle. The Mariners haven't set a timetable for him, but Pryor seems likely to return sometime around the All-Star break if all goes well.

An MRI on Stephen Pryor's groin has revealed only a minor strain.

It's good news for the Mariners, as he's expected to miss only three weeks. "I'll start playing catch Monday," said the hard-throwing right-hander. "It could have been a lot worse."

Stephen Pryor (groin) is expected to be placed on the disabled list Wednesday.

Pryor is scheduled to undergo an MRI on Wednesday after straining his groin muscle on a play at the first base bag in the ninth inning on Tuesday night. It's a tough break for the rookie right-hander, who has allowed one run over his first 5 1/3 innings in the big leagues.