Pimentel cleared waivers and was outrighted to Triple-A Round Rock on Wednesday, Evan Grant of the Dallas Morning News reports.

Pimentel was designated for assignment Wednesday, and has passed through waivers unclaimed. The 25-year-old reliever allowed five runs over 11.1 innings with the Rangers, but was replaced in the pen by Sam Freeman.

Pimentel was designated for assignment Wednesday.

He had given up four runs in his last three innings, and punched his ticket off the 40-man roster. Sam Freeman will take his place in the Rangers' bullpen.

Pimentel was added to the Rangers' active roster Sunday.

Pimentel was claimed off waivers Saturday, and the Rangers plan to use him in middle relief. Jon Edwards was optioned to Triple-A Round Rock to make room on the roster in a corresponding move.

Pimentel was claimed off waivers by the Rangers on Saturday, the Dallas Morning News' Evan Grant reports.

In 32.2 relief innings with the Pirates last season Pimentel had a 4.45 FIP and a 1.53 WHIP with 38 strikeouts. He will not report to the Rangers until Sunday, at which point he should be used as a middle reliever.

Pimentel was designated for assignment Sunday, Stephen J. Nesbitt of the Pittsburgh Post-Gazette reports.

A long shot to make the Opening Day roster, Pimentel will now be available on waivers. If he goes unclaimed, he'll start his season in the rotation for Triple-A Indianapolis.

Pimentel, who is out of options, is a long shot to make the Bucs' Opening Day roster.

The hard-throwing righty has allowed six runs on nine hits (including two homers) and four walks in six innings. Pimentel struggled to a 5.23 ERA in 32.2 IP last season. In a perfect scenario, the team would slip him through waivers and help him work out his kinks at Triple-A.

Pimentel (lower body) was activated from the 15-day DL on Monday.

Pimentel hit the DL in mid-August with lower body soreness but will return Monday after missing just over the minimum 15 days required by his stint. The 24-year-old has posted a 5.40 ERA and 1.55 WHIP in 31.2 innings with the big club this season, and will likely work exclusively in low-leverage/mop-up duty over the remainder of the regular season.

Pimentel will be placed on the disabled list Friday with lower body soreness, Rob Biertempfel of the Pittsburg Tribune-Review reports.

It's not clear what type of setback Pimentel is dealing with, but he was tagged for six earned runs over his last three outings, and the injury helps explain his struggles. John Axford, who was acquired by the Pirates on Thursday, will take Pimentel's spot in the bullpen.

Pimentel was designated for assignment Thursday, Rob Biertempfel of the Pittsburgh Tribune-Review reports.

The move won't become official until Friday, but it looks like Pimentel will be dropped from the 40-man roster to create a spot for reliever John Axford, whom the Pirates claimed off waivers from the Indians on Thursday. Pimentel contributed a mediocre 5.40 ERA and struck out 37 batters over 31.2 innings, but at 24 years old, he's still young enough to attract interest from other clubs off waivers.

Pirates activated RHP Stolmy Pimentel from the 15-day disabled list.

Pimentel missed over a month of action with inflammation in his pitching shoulder. All six of the right-hander's appearances this season in the majors have been in relief, but he could conceivably be an option to stretch out and fill in for the injured Francisco Liriano (oblique).

Stolmy Pimentel (shoulder) hurled three scoreless innings during a minor league rehab assignment at Double-A Altoona on Friday.

Pimentel allowed just three hits and a walk while striking out five. He's likely to make at least one more rehab appearance, but could be ready to rejoin the Pirates at some point next week.

Stolmy Pimentel (shoulder) threw another successful bullpen session on Monday.

Pimentel will be cleared for a minor league rehab assignment if he makes it through one final bullpen session later this week without experiencing any discomfort in his shoulder. The 24-year-old righty is currently on track to return to the Pirates' bullpen in early June. He owns a 2.61 ERA and 8.7 K/9 in 20 2/3 career major league frames.

Stolmy Pimentel (shoulder) threw a successful 28-pitch bullpen session on Saturday.

He's expected to repeat the process on Monday, and if all goes well he will head to extended spring training to begin his rehab assignment. The Pirates will continue to bring him along cautiously.

Pirates placed RHP Stolmy Pimentel on the 15-day disabled list with right shoulder inflammation.

Pimentel was showing promise this year in a mid-relief role, so the Pirates will hope that the shoulder discomfort doesn't linger. The 24-year-old righty owns a cool 2.61 ERA and 8.7 K/9 in 20 2/3 career major league frames.

Stolmy Pimentel held the Cubs scoreless for four innings to earn a win as the Pirates prevailed 4-3 in 16 innings Wednesday.

Make no mistake: the Pirates would have sent Pimentel to Triple-A and kept Vin Mazzaro at the end of the spring had Pimentel not been out of options. But that doesn't mean Pimentel can't be a useful part of the pitching staff, as he showed tonight. He has the stuff to be a legitimate starting pitcher in time, and he was able to work around three walks and hold off the Cubs until the Pirates finally scored again tonight. They won in the 16th when pinch-hitter Tony Sanchez, the last man on the bench, singled in Jose Tabata. Fortunately for both teams, there's a good chance Thursday's contest will be rained out. Neither is going to be excited to play after this marathon of a game.

Stolmy Pimentel yielded three runs in five innings Saturday in his start against the Phillies.

The runs came on homers from Jimmy Rollins, Ryan Howard and Cody Asche. Pimentel was making just his second official appearance of the spring, which is kind of odd given his status as a trade candidate. Or maybe the Pirates have their heart set on keeping him as a middle reliever. One thing is for sure: he's not clearing waivers if the team tries to sneak him through.

Stolmy Pimentel tossed two scoreless innings for the win as the Pirates topped the Phillies 4-1 on Sunday.

It's safe to say Pimentel will have a few scouts watching him this spring. He's out of options, and while the Pirates could squeeze him into their pen, they have so many strong options there that they might be better off cashing him in for a prospect.

Pirates manager Clint Hurdle indicated Sunday that Stolmy Pimentel could earn a spot in the Pirates Opening Day roster.

When discussing Pimentel, Hurdle stated "He's a very exciting young man to watch. We like his makeup and his skills. And what we were able to get from him last year." The talented 24-year-old right-hander is out of minor league options, so it seems an extreme likelihood that he cracks the roster, most likely in the bullpen.

Pirates recalled RHP Stolmey Pimentel from Triple-A Indianapolis.

Pimentel has posted a decent 3.35 ERA, 1.22 WHIP and 123/56 K/BB ratio in 169 1/3 innings this season in the Pirates' minor league system. Pittsburgh is going with an all-hands-on-deck approach down the stretch.

Stolmy Pimentel has obtained his work visa and will report to Pirates' camp Saturday.

Pimentel was the only Pirates' pitcher or catcher who didn't report on time, but was able to solve his visa issues in his native Dominican Republic. The 23-year-old right-hander was acquired from the Red Sox in December as part of the Joel Hanrahan deal.