Krol (forearm) will pitch in a minor league game Tuesday, the Detroit News' Tony Paul reports.

He threw 10-15 pitches in the cage Monday, touching the upper-90s with his fastball. Forearm soreness has bothered Krol of late, but it sounds like a very minor issue and he should be ready to break camp with the team.

Krol (forearm) threw a bullpen session Thursday and is expected to pitch in the Tigers' Grapefruit League game Friday, Anthony Fenech of the Detroit Free Press reports.

Krol's ability to right back onto a mound Thursday indicates the forearm tightness he experience Wednesday was minor, as the team suggested was the case. The 23-year-old lefty has given up three earned runs on six hits and four walks with six strikeouts in five innings this spring.

Krol did not throw Wednesday due to forearm tightness, MLB.com's Jason Beck reports.

Krol was originally scheduled to pitch Wednesday, but was held back due to what is considered to be a minor ailment. His next step will be to throw a side session over the next day or two, and if all goes well, he should be back on the mound in a game scenario in short order.

Krol has impressed early in spring training and he's attempting to work a new slider-cutter offering into his arsenal, the Detroit News reports.

If he cracks the Opening Day roster, Krol could be an effective lefty specialist while working in tandem with free-agent addition Tom Gorzelanny. Most likely, his value to the Tigers will significantly exceed that of what he can offer rotisserie owners.

Krol is in the mix for a bullpen job with the Tigers this spring, the Detroit News reports.

If he sticks as the second lefty behind Tom Gorzelanny, Krol may be used predominantly as a LOOGY and mop-up for manager Brad Ausmus.

Krol was optioned to Triple-A Toledo after Friday's game, Matthew Mowery of the Oakland Press reports.

With starter Robbie Ray lasting just 1.1 innings Friday, the Tigers burned through several relievers and needed reinforcements for Saturday's game. As a result, Krol was sent packing.

Krol was recalled from Triple-A Toledo on Monday, Chris Iott of MLive.com reports.

After the Tigers' 19-inning marathon loss Sunday, the bullpen is in dire need of reinforcements. Thus, Krol arrives following four recent blank outings across 3.2 innings at Toledo. He'll be attempting to avoid the pratfalls that resulted in a 4.97 ERA and 1.655 WHIP in 29 innings (42 appearances) with the big club this season.

Krol was optioned to Triple-A Toledo on Thursday, James Schmehl of MLive.com reports.

Krol has seen his effectiveness wane since about mid-June, allowing a total of 11 runs over his past seven innings. He'll be replaced in the Tigers bullpen by fellow lefty Patrick McCoy.

Tigers activated LHP Ian Krol from the 15-day disabled list.

The Tigers brought back Krol a day earlier than expected after Patrick McCoy (hamstring) went on the DL. The southpaw has put up a 4.32 ERA with 20 strikeouts in 25 relief innings this season.

Ian Krol (shoulder) is scheduled to begin a rehab assignment Friday with Low-A West Michigan.

Krol will pitch there Friday and Sunday before presumably moving up to a higher level. The reliever has been on the disabled list since June 21 because of left shoulder inflammation. He's about a week away from activation.

Ian Krol (shoulder) will begin a rehab assignment as soon as Friday.

Krol landed on the disabled list last week with left shoulder inflammation, but he's already thrown off a mound a couple times and will do so again Wednesday. Barring a setback, he could return next Tuesday when first eligible.

Tigers placed LHP Ian Krol on the 15-day disabled list with left shoulder inflammation.

Krol had mentioned to Tigers manager Brad Ausmus this week that he was experiencing dead arm. He owns a 4.32 ERA with 20 strikeouts in 25 innings pitched this year. There is no timetable for his return.

Ian Krol mentioned to manager Brad Ausmus that he has been experiencing dead arm.

When asked, manager Brad Ausmus said he believes some extended rest for Krol may possibly help the reliever. Krol has a 4.32 ERA with with 20 strikeouts in 25 innings pitched this season.

Ian Krol returned to action on Wednesday June 18.

Ian Krol dealt with some discomfort in his left shoulder during his last appearance on Saturday.

Krol said it's something he usually deals with each year, and he's already feeling better. "I've had the same thing [in the past]," Krol said before Monday's game. "It's not pain, just aggravating." It's not clear whether Krol will be available Monday, but it sounds like this isn't a long-term concern.

Tigers acquired LHP Ian Krol in the Doug Fister trade.

Krol posted a 3.95 ERA with 22 strikeouts over 27 1/3 innings for the Nationals this past season. With Drew Smyly moving into the rotation, the Tigers will count on him as one of their main lefties in the bullpen.

Nationals recalled LHP Ian Krol from Triple-A Syracuse.

The 22-year-old southpaw has solid numbers on the season, registering a 3.24 ERA, 1.16 WHIP and 20/7 K/BB ratio over 25 innings with the Nationals, but had struggled over his last eight appearances before being sent down on August 20. He'll work in a middle relief role.

Nationals optioned LHP Ian Krol to Triple-A Syracuse.

Krol has really struggled of late, posting a 6.43 ERA over his last eight appearances. The left-hander will be back next month.

Ian Krol has tossed 9 2/3 scoreless innings while boasting a 12/1 K/BB ratio in nine appearances since being called up by the Nationals.

Krol made the full-time move to relief this season and has really seen his stuff play up, as he's sitting comfortably in the mid-90s now. The Nats entered the season with left-handed relief innings, but it appears they've found diamonds in the rough in Krol and Fernando Abad, who holds a 1.42 ERA, 1.03 WHIP and 14/1 K/BB ratio over 12 2/3 frames.