Adcock (elbow) was transferred to the 60-day DL on Wednesday.

This is merely a procedural move to free up a spot on the Reds' 40-man roster. Adcock figures to miss most, if not all, of 2016 after undergoing Tommy John surgery earlier this month.

Adcock has a complete UCL tear and will need Tommy John elbow surgery, the Dayton Daily News reports.

Adcock felt tightness in his triceps following Sunday's outing in Colorado, and went on the DL after the problem didn't go away with treatment. "A complete tear," he said. "I'm in complete shock. No other choice but Tommy John. It is tough because you can't establish yourself with this team. It is a huge blow to me and my family as well."

Cincinnati Reds pitcher Nate Adcock will require Tommy John surgery on his injured elbow, according to the Dayton Daily News.

Cincinnati Reds pitcher Nate Adcock will require Tommy John surgery on his injured elbow, according to the Dayton Daily News. Adcock experienced tightness in his triceps following Sunday's outing and further testing revealed a complete tear of the ulnar collateral ligament, putting his 2016 season in jeopardy in addition to missing the remainder of 2015.

The Reds placed Adcock on the 15-day disabled list Thursday with a right elbow injury.

The nature of Adcock's setback is uncertain, but he will miss at least the next couple weeks due to his elbow injury. Keyvius Sampson was called up to take Adock's place in the Reds' bullpen.

The Cincinnati Reds placed pitcher Nate Adcock on the 15-day disabled list Thursday with a right elbow injury.

The Cincinnati Reds placed pitcher Nate Adcock on the 15-day disabled list Thursday with a right elbow injury. Keyvius Sampson was called up from Triple-A Louisville to take Adcock's place on the roster.

Adcock had a rough outing Saturday against the Indians, giving up three runs on a homer and three walks over 1.2 innings.

Adcock has really struggled since getting the call up to the big club, with his ERA skyrocketing to 6.43 with this outing. He's walked a whopping 11 batters in 14 innings with the Reds.

Adcock was promoted from Triple-A Louisville on Sunday.

Adcock will take the roster spot of Jumbo Diaz, who was optioned to Louisville in a corresponding move. However, the Reds have yet to announce how a 40-man roster spot will be recreated for the 27-year-old reliever, who will provide assistance in the middle innings in the short term.

Adcock has agreed to a minor league deal with the Reds, Chris Cotillo of MLB Daily Dish reports.

Adcock chose free agency after he was assigned to triple-A by Texas, and must have felt the Reds gave him the best chance to make it back into the majors in the near future. In seven appearances in the majors, Adcock posted an ERA of 4.5 and a WHIP of 1.6.

Adcock elected free agency after being assigned to Triple-A Round Rock, Rangers vice president John Blake announced.

Adcock will be looking for minor league deals that offer him the best shot of making the major league team, but offers will likely be slim. Adcock has a career 1.476 career WHIP and hasn't shown he can be anywhere above replacement level in his career so far.

Adcock was optioned to Triple-A Round Rock on Thursday.

His banishment to the minors clears the way for the promotion of Robbie Ross, who will take over Yu Darvish's (elbow) spot in the rotation. Adcock had given up five earned runs over 10 innings out of the Texas bullpen.

Rangers purchased the contract of RHP Nate Adcock from Triple-A Round Rock.

Adcock is taking the roster spot left vacant by Wednesday's Joakim Soria trade. The 26-year-old right-hander has posted a 2.76 ERA and 0.98 WHIP in 16 1/3 innings this season at the Triple-A level and will now pitch in a middle relief role for the Rangers.

Rangers reassigned RHP Nate Adcock to minor league camp.

The bigger issue is that Adcock will undergo thoracic outlet syndrome on Thursday. The 26-year-old was in camp as a non-roster invitee. He faces a lengthy rehab.

Nate Adcock will be examined by Dr. Greg Pearl on Tuesday to try and find the cause of numbness in his right arm and hand.

The Rangers think he could be dealing with thoracic outlet syndrome. If that's the case, Adcock would need surgery and faces a lengthy rehab. The 26-year-old is in camp as a non-roster invitee.

Rangers signed RHP Nate Adcock to a minor league contract with an invitation to spring training.

Adcock, who turns 26 in February, posted a 6.38 ERA and 41/27 K/BB ratio over 66 1/3 innings this past season with the Diamondbacks' Triple-A affiliate. He'll likely function as bullpen depth in the minors.

Diamondbacks claimed RHP Nate Adcock off waivers from the Royals; optioned him to Triple-A Reno.

Adcock was designated for assignment by Kansas City last week after posting a brutal 7.09 ERA over his first 47 innings (nine starts) at Triple-A Omaha. The righty seems doubtful to suddenly flourish for Arizona.

Royals designated RHP Nate Adcock for assignment.

Adcock had a rough 7.09 ERA through 47 innings (nine starts) this season at Triple-A Omaha. The 25-year-old right-hander seems likely to pass through waivers.

Royals recalled RHP Nate Adcock from Triple-A Omaha.

Adcock has posted a 2.67 ERA in 10 appearances with the Royals this season. He'll be used in long relief.

Royals optioned Nate Adcock to Triple-A Omaha.

Adcock has been up and down all season despite his 2.67 ERA in 10 appearances with the Royals. He'll be back up at some point later this summer. Lorenzo Cain is replacing him on the active roster.

Royals recalled RHP Nate Adcock from Triple-A Omaha.

Adcock has made six appearances (two starts) in the majors this season. He'll be used as the Royals' swingman with Felipe Paulino (groin) on the disabled list.

Royals optioned RHP Nate Adcock to Triple-A Omaha.

He gets the boot after lasting just 2 1/3 innings in Monday's start. Vin Mazzaro has replaced him on the roster.