MLB Player News

Feltner (back) completed a full bullpen session Monday, MLB.com reports.

Feltner has been conducting his throwing program at the Rockies' spring training facility in Arizona since being pulled off his rehab assignment with Triple-A Albuquerque in late May. The right-hander will likely throw at least a couple more side sessions before advancing to facing hitters and eventually heading back out on a rehab assignment. Given that he's been on the shelf since May 2 due to the back issue, Feltner may need more than one rehab start before he's cleared to rejoin the Colorado rotation, possibly in late June or early July.

Gomber (shoulder) struck out three and allowed one earned run on two hits and no walks over four innings in his rehab start for Double-A Hartford on Wednesday.

Gomber's appearance was his first at any level since March 28, when he made a rehab start in Triple-A Albuquerque's season opener before experiencing a setback in his recovery from left shoulder soreness. The left-hander checked out fine coming out of Wednesday's start, and after completing a bullpen session at Coors Field on Saturday, he's set to report to Albuquerque for his next rehab outing Tuesday. Gomber is expected to cover 65 pitches Tuesday, and if all goes well, he could be a candidate to return from the 60-day injured list and make his season debut with the Rockies.

Mayfield (shoulder) struck out four over two perfect innings in a start of Single-A Lake Elsinore last Wednesday.

Mayfield made his first appearance since May 13 after he had been shut down with left shoulder discomfort, though Lake Elsinore never placed him on its injured list. One of the top lower-level prospects in the San Diego system, Mayfield has accrued a 4.84 ERA, 1.18 WHIP and 31:9 K:BB across 22.1 innings over seven starts at Single-A this season.

Bailey was scratched from the lineup ahead of Tuesday's game against the Rockies due to neck spasms, Susan Slusser of the San Francisco Chronicle reports.

While Bailey takes a day off to recover, Andrew Knizner will start behind the plate and could continue to do so if Bailey needs to miss any additional games.

The Diamondbacks transferred Mena (shoulder) to the 60-day injured list Tuesday, Alex Weiner of ArizonaSports.com reports.

Mena landed on the injured list Saturday due to a teres major strain in his right shoulder. Now that he's on the 60-day IL, he won't be eligible to return to the D-backs' bullpen until early August. His spot on the 40-man roster will be given to Tayler Scott, who was selected from Triple-A Reno in a corresponding move.

The Diamondbacks placed Montes De Oca on the 15-day injured list Tuesday with right elbow inflammation.

Montes De Oca reported discomfort in his elbow after Monday's contest, and an MRI revealed inflammation Tuesday. He'll remain on the shelf for at least the next 15 days as a result, and with Jeff Brigham and Justin Martinez (elbow) also leaving the active roster, the D-backs will bring in Kevin Ginkel, Bryce Jarvis and Tayler Scott as bullpen reinforcements.

The Diamondbacks optioned Brigham to Triple-A Reno on Tuesday.

Brigham's demotion comes after he surrendered three runs without recording an out during Monday's win over Seattle. With Justin Martinez (elbow) and Christian Montes De Oca (elbow) moving to the IL, the D-backs will call up Kevin Ginkel, Bryce Jarvis and Tayler Scott to reinforce their bullpen.

The Diamondbacks selected Scott's contract from Triple-A Reno on Tuesday.

Scott will come up alongside Kevin Ginkel and Bryce Jarvis to replace Jeff Brigham, Justin Martinez (elbow) and Christian Montes De Oca (elbow) in Arizona's bullpen. Scott, 33, turned in a 5.40 ERA and 1.68 WHIP in 16.2 innings during his time with the Astros this year, though he's fired 3.1 shutout innings in Triple-A since joining the D-backs organization.

The Diamondbacks recalled Jarvis from Triple-A Reno on Tuesday.

Jarvis will be promoted as part of a flurry of roster moves that also includes Kevin Ginkel and Tayler Scott joining the active roster, while Justin Martinez (elbow) and Christian Montes De Oca (elbow) land on the IL and Jeff Brigham returns to Triple-A. Jarvis has given up six earned runs in 7.1 major-league innings this season and will likely be reserved for low-leverage work while in Arizona.

The Diamondbacks placed Martinez on the 15-day injured list Tuesday due to a sprained UCL in his right elbow.

The right-hander experienced tightness in the elbow during the ninth inning of Monday's contest, and a UCL sprain is an ominous initial diagnosis. The severity of the issue isn't yet known, and manager Torey Lovullo said Martinez is headed for a second opinion on the MRI result, per Nick Piecoro of The Arizona Republic. Even a low-grade sprain could require a lengthy absence, with Tommy John surgery likely being the worst-case scenario. Shelby Miller is likely to be the next man up as Arizona's closer.