Zimmer, who recently returned to action with Triple-A from a shoulder injury, is not expected to be called up anytime soon, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

In three relief appearances -- each of which lasted two innings -- since being activated, the 25-year-old righty has surrendered just one run on four hits while striking out five. Zimmer is expected to fill a rotation spot for Kansas City in the not-too-distant future, but the club is in no hurry to push him through the ranks. Even if he does well in Omaha, the team currently has no room in its big-league rotation for Zimmer.

Zimmer (shoulder) was activated off the minor-league disabled list Tuesday, Rustin Dodd of The Kansas City Star reports.

EDGE Analysis

Zimmer has been out since late April due to this most recent shoulder ailment, although it seems like the Royals finally feel comfortable enough to deploy him in full game action again. With all the injuries to the Royals' rotation, it's not out of the question for the pitching prospect to receive a callup later in the summer, although he'll need to prove he can stay healthy over an extended number of starts with Triple-A Omaha.

Zimmer (shoulder) has recently been able to throw in two extended spring training games in Arizona, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

Zimmer was placed on the 7-day disabled list in late April with shoulder soreness and has since spent the last month in Arizona rehabbing. He was cleared to resume throwing about two weeks ago and has since advanced to facing hitters, but is still expected to pitch a few more outings in extended spring training or at a lower-level minor-league affiliate before rejoining Omaha. Though the Royals are likely to give some of their starting pitchers at Triple-A trials with the big club in the next few weeks with Danny Duffy (oblique) and Nate Karns (forearm) on the DL, Zimmer won't be under consideration for a promotion until he's able to stay healthy and pitch effectively for Omaha over an extended stretch.

Zimmer (shoulder) is able to throw without pain and may partake in a brief rehab stint in Arizona before returning to Triple-A Omaha, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

Zimmer was placed on the 7-day disabled list on April 24 with shoulder soreness but is apparently feeling well enough to return to the Triple-A starting rotation in the near future. Prior to his injury, Zimmer had posted a 4.76 ERA over his first 5.2 innings.

Zimmer was placed on the 10-day DL with shoulder soreness, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

Zimmer left his last start after just one inning due to shoulder soreness, and given his injury history, the Royals are taking no chances with him. The move is retroactive to April 21, but it's more than likely that the Royals will take it slow with the 25-year-old, who has pitched fewer than 100 total innings since 2014 thanks to a variety of injuries. It's unclear how long the shoulder ailment will keep him sidelined, but his status should be updated once the Royals release more.

Zimmer left Thursday's start for Triple-A Omaha after one inning with right shoulder soreness, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

The Royals are saying that his removal was precautionary, but given Zimmer's long history of shoulder troubles, this is cause for concern. Zimmer was limited to just three starts last season due to shoulder fatigue and he has thrown fewer than 100 innings total since the start of 2014. The fifth overall pick in 2012, he ultimately underwent Thoracic Outlet Syndrome surgery last year in hopes of putting those issues behind him.

Zimmer will have his minor-league innings carefully managed this season, and the righty is not expected to join the MLB club this season, Mark Schremmer of The Joplin Globe reports.

EDGE Analysis

Zimmer, the Royals' first-round pick (No. 5 overall) in 2012, has been plagued by injuries that have limited to just 66 games over parts of six minor-league seasons. The organization's No. 6 prospect can sling his heater near triple digits, and by most accounts, has the makings of a front-line starter when healthy. Currently being used as a starter for Triple-A Omaha, Zimmer is not following the same routine for off days as the other minor league pitchers. While the number is unknown, the Royals are expected to impose an innings limit on the 25-year-old this season.

Zimmer was moved to Triple-A Omaha on Tuesday, Rustin Dodd of MLB.com reports.

EDGE Analysis

The Royals apparently felt comfortable promoting Zimmer after he pitched in one game at Double-A Northwest Arkansas, where he threw four innings and allowed one run on six hits while striking out six. The 25-year-old is coming off Thoracic Outlet Syndrome surgery in the summer, though he still remains one of the Royals' top prospects. If he is able to bounce back well from the procedure at Triple-A, he could make his big league debut as a reliever at some point in 2017.

Zimmer was optioned to Double-A Northwest Arkansas on Wednesday, MLB.com's Jeffrey Flanagan reports.

EDGE Analysis

Though Zimmer remains one of the better pitching prospects in the Royals system, he's lost a little luster in dynasty formats over the last few years to ongoing shoulder troubles, which he addressed through Thoracic Outlet Syndrome surgery last summer. If Zimmer bounces back well from the procedure, he could make his MLB debut as a reliever at some point in 2017, but for now, the Royals will let the 25-year-old stretch out as a starter in the minors.

Zimmer allowed two earned runs and four hits in two innings of work against the Rangers on Sunday.

EDGE Analysis

Sunday was Zimmer's first time taking the mound in a game since undergoing Thoracic Outlet Syndrome surgery last July, and it did not go particularly well. His velocity dropped steeply in his second of his two innings pitched, but the 25-year-old said after the game that he was not overly concerned about the decrease, and that it was a matter of early-season fatigue more than anything else. Zimmer will look to build up stamina over the course of spring training, as he gears up for what he hopes will be an injury-free season.