Roy Oswalt has decided to retire from baseball.

We heard back in November that Oswalt intended to pitch in the majors in 2014, but he apparently didn't find the right opportunity. He'll work with his agent, Bob Garber, in retirement. A three-time All-Star, Oswalt will walk away from the game with a 163-102 lifetime record over 13 seasons to go along with a 3.36 ERA and 1.21 WHIP.

According to MLB Trade Rumors, Roy Oswalt intends to pitch in the majors in 2014.

While Oswalt prefers to start, he is open to pitching in relief and has heard from multiple teams about the possibility. The 36-year-old appears to be looking for a major league deal, but he will likely struggle to get it after posting a 6.80 ERA over the past two seasons.

Roy Oswalt was charged with four runs over just 4 2/3 frames but escaped with a no-decision in the Rockies' 7-6 extra innings win over the Cardinals Thursday.

Oswalt gave up five hits and walked four, though it's worth noting that home plate umpire Vic Carapazza's strike zone was moving around all day. He's now lasted 4 2/3 innings in each of his two starts since rejoining the rotation and has a 7.71 ERA for the season. Fantasy owners should avoid him next week at home against the Red Sox.

Roy Oswalt dropped to 0-6 after allowing two runs in 4 2/3 innings Saturday versus the Diamondbacks.

As has been typical, Oswalt got his strikeouts (five tonight) but gave up a lot of hits anyway (seven). He's lost all six of his appearances for the Rockies, though run support has been a major issue. He has a 29/5 K/BB ratio with just two homers allowed in 25 2/3 innings, yet his ERA stands at 7.71. He'll break FIP if this keeps up.

Roy Oswalt will take Chad Bettis' spot in the Rockies' rotation.

Oswalt followed Bettis during Sunday's start in San Diego, but it will be Oswalt getting the ball this weekend in Arizona. The veteran right-hander has put up an 8.57 ERA and 1.76 WHIP over 21 innings this season for the Rox and should be avoided for fantasy purposes.

Rockies activated RHP Roy Oswalt from the 15-day disabled list.

Oswalt has been sidelined since early July due to a strained left hamstring. The veteran hurler was an abysmal 0-4 with a 7.64 ERA, 1.76 WHIP and 23/2 K/BB ratio over 17 2/3 innings before hitting the DL. He shouldn't be started in any mixed leagues down the stretch.

Roy Oswalt (hamstring) will be activated from the disabled list and appear in Sunday's game in San Diego.

It's not known yet whether he'll start the game or come in after Chad Bettis. Given Bettis' 5.45 ERA and 1.79 WHIP over seven starts, the smart money would be on Oswalt getting the call. The veteran right-hander has been on the shelf since early July with a strained left hamstring.

Roy Oswalt (hamstring) allowed three hits and a walk over 5 2/3 scoreless innings in a rehab start with rookie league Grand Junction Rockies on Tuesday.

He struck out a pair, throwing 41 of 55 pitches for strikes. Manager Walt Weiss indicated that how Oswalt fares Tuesday will determine what role he'll serve in for the team down the stretch. It's probably safe to say he'll rejoin the rotation next week.

Roy Oswalt (hamstring) will make a rehab start with the rookie league affiliate Grand Junction Rockies on Tuesday.

Oswalt has been throwing simulated games recently and has been deemed ready for a rehab start. It may be the only one he needs, as he's been amping up his pitch count lately. He should be back sometime in early September.

Roy Oswalt (hamstring) could make a rehab appearance this weekend.

Oswalt threw another successful simulated game Tuesday, going four innings and throwing close to 60 pitches. If he doesn't make a rehab start this weekend, he'll throw a simulated game. Either way, he's close to rejoining the Rockies' rotation. "I'm trying to get back and pitch this year and go from there," Oswalt said. "I'm hoping to come back and start at least four, maybe five games."

Roy Oswalt (hamstring) will throw at least one more simulated game before going out on a rehab assignment.

Oswalt is a little behind Tyler Chatwood (elbow), who also threw a simulated game Thursday. He'll throw another sim game over the weekend before likely beginning a rehab assignment sometime next week. Barring a setback, Oswalt should rejoin the rotation in early September.

Roy Oswalt (hamstring) threw three innings in a simulated game Thursday.

Like his teammate Tyler Chatwood (elbow), the next step calls for Oswalt to make a minor league rehab start on Sunday. However, it's unclear when he'll be activated. The veteran right-hander has been sidelined for a little over a month with a left hamstring strain.

Roy Oswalt (hamstring) threw 65 pitches in a bullpen session Monday.

The next step is a simulated game on Thursday. If all goes well, he could make a minor league rehab start as soon as Sunday. The veteran right-hander has been sidelined for a little over a month with a left hamstring strain.

Roy Oswalt (hamstring) will attempt to throw a simulated game sometime in the "near future."

Oswalt experienced a setback with his hamstring Saturday while throwing a sim game, but it was apparently minor. "I think he'll back before too long," Rockies manager Walt Weiss said. "I think he's going to move quickly."

Roy Oswalt experienced a setback with his hamstring Saturday while throwing a simulated game.

Oswalt made it through just two hitters before calling it quits. "It's going to take a couple more weeks," said the veteran right-hander. "I want to be out there." He has been on the 15-day disabled list since July 8.

Roy Oswalt (hamstring) threw a successful 36-pitch bullpen session on Tuesday afternoon.

Oswalt plans to throw a simulated game on Friday and then head out on a short minor league rehab assignment. He should be back with the Rockies by mid-August.

Roy Oswalt (hamstring) is scheduled to throw a 40-pitch bullpen session on Tuesday.

Oswalt said he was at about "80 percent" when he threw 15 pitches in a bullpen session Friday. Barring any setbacks on Tuesday, he should be cleared to face live hitters. Look for him to rejoin the Rockies' rotation within the next couple of weeks.

Roy Oswalt (hamstring) threw a 15-pitch bullpen session at about 80 percent on Friday.

"I'm feeling good, no pain," he said. Oswalt will travel with the Rockies and throw another bullpen session during their upcoming road trip. He should be ready for a rehab assignment soon and a return to the team's rotation within the next couple weeks.

Roy Oswalt (hamstring) hopes to throw a bullpen session this weekend.

Oswalt thinks he's ahead of schedule after doing resistance training with weights, increasing the pace of his running and playing long-toss on Monday. "It's going pretty well," Oswalt said. "They're looking at me kind of funny, like it's going too fast. It's not going fast enough for me. I know they don't want to push me until it gets completely healed, but it feels great right now." If Oswalt is able to throw a bullpen session this weekend, a return in early August is likely.

Roy Oswalt (hamstring) ran lightly in the outfield and threw on flat ground Thursday.

Oswalt is easing back into activity as he tests out his left hamstring strain. There's no timetable for the veteran right-hander's return, but early August seems like the best bet.