RHP Aaron Crow, who missed the entire 2015 season after having Tommy John surgery in the spring, was non-tendered by the Marlins on Wednesday. The move makes him a free agent. Crow, 29, would have been arbitration-eligible this winter. In 2014, he went 6-1 with three saves and a 4.12 ERA in 67 relief appearances for Kansas City.

Crow has been transferred to the 60-day disabled list, MLB.com's Joe Frisaro reports.

Crow is already slated to undergo Tommy John surgery, so the move is merely procedural at this point, helping the team clear up a spot on the 40-man roster. He'll look to return to action in early-2016.

Crow (elbow) will undergo Tommy John surgery Wednesday, Joe Frisaro of MLB.com reports.

Crow's diagnosis of a partially torn UCL in his right elbow made Tommy John a virtual certainty, and he now has a set date for the procedure. The 28-year-old right-hander made at least 57 appearances in each of the last four years for Kansas City, posting a combined 3.43 ERA, 1.32 WHIP and 8.0 K/9, but will have to wait until 2016 to step back on a major league mound.

Crow (elbow) was placed on the disabled list retroactive to March 29 on Sunday, MLB.com's Joe Frisaro reports.

Crow is facing season-ending Tommy John surgery, but this move will free up a roster spot in the short term for the Marlins. Look for the right-handed reliever to be moved to the 60-day DL to free up a spot on the 40-man roster once the need for surgery is confirmed.

Crow (elbow) was diagnosed with a partially torn ulner collateral ligament in his throwing elbow and is facing season-ending Tommy John surgery, MLB.com reports.

Acquired in an offseason trade coming off of a down 2014, Crow was in line to earn a bullpen spot with the Marlins. He will seek a second opinion before surgery, but Crow can be all but ruled out for the entire 2015 season.

Crow is dealing with a sore elbow, MLB.com's Joe Frisaro reports.

Even if the issue isn't serious, it could impact Crow's chance to make the Opening Day roster. He's competing for the final spot in the bullpen.

Crow is competing to earn the final spot in the Marlins' bullpen, MLB.com reports.

Coming off of a down 2014 season with the Royals, Crow has looked solid in limited Grapefruit League action, allowing a pair of runs over five innings with six strikeouts and two walks. Thanks to an influx of major league arms this offseason, the Marlins will be forced to make some tough decisions as the set their Opening Day bullpen. Crow's solid work in camp and steady track record give him an edge over the likes of Carter Capps, Sam Dyson, Nick Masset and Andrew McKirahan who could all be competing for just one roster spot.

Crow and the Marlins avoided arbitration by agreeing to a one-year, $1.975 million deal Friday, CBS Sports' Jon Heyman reports.

Acquired from Kansas City in November, Crow posted a 6-1 record last year but saw his strikeout rate drop from 8.25 per nine innings in 2013 down to 5.19 in 2014. He figures to be in the late-inning mix for the Miami bullpen.

Crow was traded to the Marlins on Friday in exchange for pitchers Brian Flynn and Reid Redman, FOX Sports' Ken Rosenthal reports.

Crow will head to Miami after appearing in 254 games for the Royals over the last four seasons. He was just a middle reliever in a deep Royals bullpen, but he could appear in more important situations for the Marlins in 2015.

Crow pitched a scoreless ninth inning for his third save of the season Tuesday against the Rangers.

He was only used because Greg Holland and Kelvin Herrera were both unavailable after pitching in three straight games, so this doesn't warrant waiver wire action.

Crow was optioned to Double-A Northwest Arkansas on Wednesday.

Crow has been hammered in three of his past four appearances, allowing six runs on seven hits and one walk to go with one strikeout in 3.1 innings. Although he's been the weak link of an otherwise stellar bullpen, he'll likely return to the Royals once rosters expand in September.

Aaron Crow worked a scoreless ninth inning Friday against the Indians for his second save of the season.

Crow worked around a one-out leadoff double from Yan Gomes to finish off the win. Greg Holland was unavailable Friday after pitching the previous three days, but he should be good to go for Saturday.

Royals and RHP Aaron Crow avoided arbitration by agreeing to a one-year, $1.475 million contract.

He can earn an additional $50,000 if he makes the All-Star team. The two sides wound up settling just below the midpoint of figures exchanged earlier this month. Crow posted a 3.38 ERA, 1.48 WHIP and 44/22 K/BB ratio in 48 innings for the Royals last season.

Aaron Crow requested $1.7 million and was offered $1.28 million from the Royals when arbitration figures were exchanged on Friday.

With the two sides as close as they are, they should be able to strike a deal someplace in the middle of the two figures. The 27-year-old posted a 3.38 ERA, 1.48 WHIP and 44/22 K/BB ratio in 48 innings while earning $1.28 million in 2013.

Troy Renck of the Denver Post says the Rockies are looking for another bullpen arm and have some interest in Aaron Crow.

Crow had a down season but has a 3.19 ERA and a K/9 just under 9.0 for his career. The Rockies signed LaTroy Hawkins to be their closer in 2014, but the 27-year-old Crow would give them a strong back-end of the bullpen along with Rex Brothers. Crow is first-time arbitration eligible this winter.

Bob Dutton of the Kansas City Star reports that the Royals are shopping Aaron Crow and Tim Collins.

Collins and Crow are each entering their first year of salary arbitration and the Royals want to see what kind of package can be fetched before the talented young relievers get expensive. Kansas City has good bullpen depth, and getting a starting pitcher or some offense in return would be the goal. Crow, 27, posted a 3.38 ERA and 44/22 K/BB ratio in 48 innings this year. Collins, 24, had a 3.54 ERA.

Aaron Crow has registered a 1.08 ERA and 0.96 WHIP in 8 1/3 innings this year out of the Royals bullpen.

Crow yielded his first run of the season on May 5, when White Sox outfielder Alex Rios took him deep. The 26-year-old right-hander boasts a solid 3.00 ERA, 1.26 WHIP and 9.0 K/9 through 135 career major league innings.

With both Greg Holland and Kelvin Herrera unavailable, Aaron Crow closed out Monday's win over the Twins with a scoreless ninth.

Crow issued a one-out walk but then induced a double-play ball to end it. He's third in line for saves in Kansas City, but obviously Herrera will get the first crack at the job should manager Ned Yost make a move.

Royals manager Ned Yost said that Aaron Crow will be used if a save situation arises Monday against the Astros.

Jonathan Broxton threw 29 pitches over two innings Sunday against the Cardinals, so Yost would like to stay away from using him. Yost is also considering using him as a pinch-hitter under National League rules. Greg Holland and Tim Collins are also unavailable Monday and could be used as emergency outfielders.

With Tuesday's game getting called due to rain, Aaron Crow pitched up a save by pitching a scoreless seventh inning against the A's.

The Royals likely intended to follow Crow with Greg Holland and Jonathan Broxton tonight, but they never got the chance. Crow struck out two in his inning. He's fanned six in three innings for the season, but he's also given up three runs.