Jennings struck out two Indians in a scoreless inning Wednesday to earn his second hold of the season.

This was already Johnson's fourth appearance for the White Sox in just over a week of play. He has been used in both setup and mopup situations, and he could become one of manager Robin Ventura's favorite bullpen toys.

Jennings was traded to the White Sox on Thursday in exchange for Andre Rienzo.

Jennings owns an impressive 2.43 ERA over 100 major league innings, but his career 1.46 WHIP is mildly concerning. He will likely slot in as the second left-hander out of the White Sox's bullpen behind Zach Duke.

Jennings (concussion) was reinstated from the 15-day disabled list Monday.

The Marlins waited to activate Jennings until the rosters expanded in September. He will join Carter Capps as the two players giving the club extra arms in the bullpen while the Marlins chase their slim playoff hopes.

Jennings (concussion) is expected rejoin the Marlins when rosters expand on Sept. 1, the Miami Herald reports.

Jennings sustained a concussion back on Aug. 7 after taking a line drive to the head but has made solid progress since, appearing in four games for High-A Jupiter during his rehab. Jennings holds a sparkling 1.03 ERA in 35 innings pitched this season for the Marlins.

Jennings (concussion) tossed a scoreless inning for the Gulf Coast League Marlins in his return the mound Tuesday.

Jennings concussion symptoms subsided a few days after he was struck by a line drive on Aug. 7 and has begun working his way back on a rehab assignment. He struck out one and walked a batter during the effort and should be back with the team in the coming days.

Jennings has not dealt with any concussion symptoms since being struck on the head by a line drive Aug. 7, the South Florida Sun-Sentinel reports.

Jennings was bothered by headaches for a couple days after being struck, but he has not shown any sensitivity to noise are light since, and has even been able to work out the last couple days. He is eligible to be activated from the disabled list Friday, but it remains to be seen if he will return that day.

Jennings rejoined the Marlins on Monday and was examined by team doctors as he continues to recover from a concussion sustained on August 7, the Miami Herald reports.

Currently on the 7-day disabled list, Jennings remains a "ways away from doing any baseball activities," according to Manager Mike Redmond, but he's making steady improvement since taking a line-drive to the head against the Pirates last week. Baseball aside, it is nice to see Jennings out of the hospital and back with his teammates following the incident.

Jennings was placed on the 7-day concussion DL on Friday, Juan C. Rodriguez of the South Florida Sun Sentinel reports.

A line drive off the bat of the Pirates' Jordy Mercer hit Jennings in the head Thursday, resulting in a scary scene at PNC Park. Fortunately, a CT scan came back clean, but Jennings was diagnosed with a concussion and it wouldn't be a surprise if he missed more than seven days.

Jennings' was only diagnosed with a concussion after his CT scan came back negative Thursday, Joe Frisaro of MLB.com reports.

Jennings will spend the night in the hospital so doctors can observe his condition further. Even though just a concussion is better news than was expected, he'll still be relegated to the one-week minimum DL stint for concussions.

Jennings left Thursday's game after being struck in the head with a line drive, Rob Biertempfel of the Pittsburgh Tribune reports.

It was a scary scene at PNC park, but Jennings was able to give the crowd a thumbs up as he was carted off the field. He didn't lose consciousness during the incident, but appeared to be visibly disoriented. Jennings will likely undergo concussion tests, and may risk missing longer than the one-week minimum for the concussion DL.

Jennings was recalled from Triple-A New Orleans on Friday, the South Florida Sun Sentinel reports.

Jennings was optioned to New Orleans on Thursday after the acquisition of starter Jarred Cosart, but he returns Friday as Henderson Alvarez (shoulder) hits the DL. In 35 relief appearances for Miami this season, Jennings has allowed only four runs and boasts a 1.15 ERA to go with a 1.564 WHIP.

Jennings has been optioned to Triple-A New Orleans.

The Marlins acquired starting pitcher Jarred Cosart on Thursday, and Jennings' demotion indicates that Jacob Turner will likely be moved to the bullpen. Though he owns a 1.15 ERA through 31.1 innings, Jennings has an unsightly 1.56 WHIP and 27:15 K:BB.

Marlins recalled LHP Dan Jennings from Triple-A New Orleans.

Jennings has been shuffled back-and-forth between Triple-A and the majors this season even though he holds a 0.86 ERA in 23 appearances with the big club. He'll be used in middle relief.

Marlins optioned LHP Dan Jennings to Triple-A New Orleans.

Jennings had a 1.69 WHIP and .87 ERA prior to being sent back down to Triple-A.

Marlins recalled LHP Dan Jennings from Triple-A New Orleans.

The 27-year-old southpaw has already appeared in 12 games with the Marlins this season, compiling a 1.59 ERA, 1.59 WHIP and 9/4 K/BB ratio in 11 1/3 innings. He'll work in middle relief.

Marlins optioned LHP Dan Jennings to Triple-A New Orleans.

Jennings pitched a scoreless frame over two appearances during his latest stint with the big club, but that wasn't enough to keep him around. He'll be back later this season.

Marlins recalled LHP Dan Jennings from Triple-A New Orleans.

Jennings has posted a 1.74 ERA, 1.65 WHIP and 8/4 K/BB ratio over his 10 1/3 innings with the Marlins this season. He'll work in middle relief.

Marlins optioned LHP Dan Jennings to Triple-A New Orleans.

The 27-year-old southpaw was the odd man out in order to make room on the active roster for Jacob Turner who returned from the disabled list on Saturday. He posted a 1.74 ERA, 1.65 WHIP and 8/4 K/BB ratio over his 10 1/3 innings with the Marlins, and should get another opportunity with the big league club very soon.

Marlins recalled LHP Dan Jennings from Triple-A New Orleans.

Jennings has posted a cool 1.80 ERA and 25/11 K/BB ratio in 25 innings this season at the Triple-A level. The left-hander will operate in mid-relief for the Fish.

Marlins optioned LHP Dan Jennings to Triple-A New Orleans.

Jennings had an ugly 6.75 ERA and 6/8 K/BB ratio over eight innings this spring. The 25-year-old southpaw will serve as bullpen depth in the minors.