RHP A.J. Griffin, on the DL with shoulder soreness, will begin a rehabilitation assignment on Thursday in a game with Double-A Frisco. Griffin will throw 45-50 pitches in the first of what could be anywhere from two to four starts in the minors. Griffin, who missed almost all of the last two seasons with arm troubles, is 3-0 with a 2.94 ERA in six starts this season.

RHP A.J Griffin (shoulder) will be evaluated on Tuesday after throwing a 25-pitch bullpen session on Monday. If all goes well, he could be sent out on rehabilitation assignment by the end of the week. Griffin, who missed almost all of the last two seasons, is 3-0 with a 2.94 ERA in six starts this season.

RHP A.J. Griffin (shoulder) threw 25 pitches in a bullpen session on Monday. He will be evaluated on Tuesday and could go out on a rehabilitation assignment by the end of the week.

RHP A.J. Griffin is expected to return by the end of the month after an MRI showed no structural issues with his sore right shoulder. Griffin will be able to resume throwing when he is symptom free.

ARLINGTON, Texas -- The Texas Rangers received good news on A.J. Griffin's right shoulder. The right-hander could be back in the Rangers rotation by the end of the month.An MRI showed no structural damage to his sore and inflamed right shoulder, a team official said prior to the Rangers' 6-5 victory over the Chicago White Sox on Wednesday. Griffin exited his last start on Saturday against Toronto with tightness.Griffin will only begin throwing when he is free of soreness and inflammation."That's as positive of information as we could get," manager Jeff Banister said. "Now it becomes how he feels on the throwing side of it and how he responds."Concerns about Griffin were further heightened considering his missed all of the past two seasons with Tommy John surgery and shoulder problems. Griffin said this is something akin to the shoulder problem of 2012. He missed 26 games then.The 28-year-old has been good in his first six starts with Texas this season, posting a 3-0 record and a 2.94 ERA.The Rangers will skip Griffin's turn in the rotation with an off-day on Thursday. Lefty Cesar Ramos is expected to make a spot start in Griffin's place on Sunday against Toronto.After Sunday, Texas won't need a fifth starter until May 24. They expect that pitcher to be Griffin.

RHP A.J. Griffin had a precautionary MRI of his stiff shoulder on Tuesday. However, the club is awaiting a review of the results by team physician Dr. Keith Meister.

RHP A.J. Griffin was placed on the 15-day disabled list Sunday after complaining of shoulder stiffness 2 2/3 innings into his start the previous day. Griffin, who missed two seasons following arm surgery, was idled as a precaution by Texas. "He was probably going to miss a start anyways," manager Jeff Banister said, "(so we decided to err) on the conservative side, given his history plus the number of innings he's thrown and pitches, let's allow this thing to calm down." The Rangers have the next three Thursdays off and Banister says this will allow him to need just one spot start before Griffin is able to return, if he can.

RHP A.J. Griffin left Saturday's game in Detroit during the third inning with right shoulder stiffness. Griffin gave up Nick Castellanos' two-out, bases-loaded single in the third. He was charged with three runs. Manager Jeff Banister didn't have a further update on Griffin's condition after the game. The problem cropped up as the inning went along. "A couple of pitches earlier he was kind of shaking his arm a little bit," Banister said. "We didn't want to push it anymore and he didn't want to push it anymore."

RHP A.J. Griffin equaled his career high when he struck out nine in six innings Monday. Griffin did not factor in the decision of the 2-1 win over the Toronto Blue Jays as he allowed three hits, two walks and one run. He has recorded nine strikeouts three times after Monday's outing and two have been at Rogers Centre.

RHP A.J Griffin has won three straight to start his Texas career. He turned in the longest outing by a Texas starter this season and his longest start since 2013 by going eight innings against the Yankees. "Just trying to work fast and keep the team into the game," Griffin said. He has now completed at least five innings in 32 straight starts, the third-longest active streak in the majors. He improved to 3-0 with a 2.49 ERA.

RHP A.J. Griffin is slated for his fourth start of the season Tuesday in the middle contest of this three-game set with the Yankees. Griffin, 28, is 2-0 through three starts this season and his career win percentage of .676 (23-11) is tied for seventh-highest among all active pitchers. He will be working on regular four-days' rest for the second time this season after he helped the Rangers complete a sweep of Houston in a 7-4 win in his most recent start.

RHP A.J. Griffin is now 4-0 in five career starts against Houston. Griffin struck out six and allowed just two earned runs in his six innings Thursday. At one point, he retired eight consecutive Astros. "I just felt like I was staying behind the ball better today, meaning staying behind the rubber better," Griffin said. "I was able to repeat my pitches, staying back and letting my arm get out in front, and that helped with the velocity as well."

RHP A.J. Griffin will make his third start of the season Thursday on extended seven days rest due to Sunday's rainout and Monday's off day. The series finale will be just Griffin's third career start at Globe Life Park and first in a Rangers uniform. He is 0-0, 1.59 (2 ER/11.1 IP) in two starts at Globe Life Park, both coming as a member of the Oakland A's in 2012-13.

RHP A.J. Griffin overcame four walks to limit Seattle to three hits and two runs (one earned) in five innings Wednesday. Griffin missed the 2014 season after undergoing Tommy John elbow surgery, and shoulder problems limited him to four games in the minors last year. Griffin went 22-11 in his two previous major league seasons with Oakland in 2012-13, but the Athletics released him in November. His fastball only reached the mid-80s in Seattle, but he frustrated the Mariners by mixing in mid-60s curveballs.

RHP A.J. Griffin continues his return from 2014 Tommy John surgery with a scheduled start Wednesday afternoon in Seattle. In his first game since the 2013 season, Griffin pitched six innings, allowing three runs off six hits, to earn the win over the Angels last week. His only other start at Seattle's Safeco Field came in Sept. 2012, when Griffin allowed one run off six hits over 5 1/3 innings while with the Oakland A's.

RHP A.J. Griffin earned a victory in his first major league start in more than 2 1/2 years, giving up three runs on six hits and two walks in six innings Friday against the Angels. Griffin last pitched in a major league game on Sept. 24, 2013 with Oakland. He missed all of the 2014 and '15 seasons after having Tommy John surgery in April of 2014. "I don't even know how to put that in words," Griffin said of his long road to recovery. "It was a grind, though. And to be able to get out here and have the opportunity to compete again, it's just fantastic. I'm really thankful for the Rangers for this opportunity. It just shows that if you keep working hard and you have your eye on the prize, you can do great things. ... (Not making it back to the big leagues) never entered my head. I just finally took my time this past offseason and got my body in the right shape for pitching. I'm not a supermodel or anything, obviously, but I'm in good pitching shape now and I feel really good."

RHP A.J. Griffin will start Friday against the Angels. It will be his first major league start since Sept. 24, 2013, while pitching for Oakland against the Angels. He had Tommy John surgery in April 2014 and missed both the 2014 and '15 seasons. Griffin was 7-1 as a rookie in 2012 and was a 14-game winner for the A's in 2013. He is 2-2 with a 2.81 ERA in five career starts vs. the Angels.

RHP A.J. Griffin will be called up from Triple-A Round Rock to start Friday's game at Anaheim. Griffin last pitched in the majors in September 2013 for Oakland before missing the 2014 and '15 seasons while recovering from Tommy John surgery.

RHP A.J. Griffin, who missed the past two seasons following Tommy John elbow surgery, signed a minor league contract with the Rangers that includes an invitation to spring training.Griffin, 27, was 7-1 in 2012 and 14-10 in 2013 with Oakland, but after he missed both the 2014 and 2015 seasons, he was released by the A's.

RHP A.J. Griffin was released by the A's on Nov. 25. He underwent Tommy John surgery in April 2014, causing him to miss the entire 2014 season, then developed shoulder soreness this year while pitching for Triple-A Nashville. He finished the season on the Triple-A disabled list.