MLB Player News

Knack was optioned to Triple-A Oklahoma City on Monday, Fabian Ardaya of The Athletic reports.

Knack filled in admirably Sunday in a spot start against the Reds, surrendering one run on three hits and one walk while fanning five over 4.2 innings. He'll be moved back to the minors to make room for Yohan Ramirez, who was acquired in a trade from the Mets earlier in the day.

Olson exited Monday's start against the Royals after being struck by a line drive in his right hip, Chris McCosky of The Detroit News reports. He surrendered two runs on five hits and one walk while striking out two over 2.2 innings before departing.

Olson was forced to leave the game after being hit by a comebacker that registered at 102 mph off the bat, though he did attempt to fire a few warmup pitches before the training staff walked him off the field, per Evan Petzold of the Detroit Free Press. Beau Brieske entered the game to replace Olson in the bottom of the third inning.

Mastrobuoni was optioned to Triple-A Iowa on Monday, per MLB's transaction log.

Mastrobuoni went 0-for-10 at the dish over his last three games, and he'll be demoted to the minors now that Dansby Swanson (knee) is ready to be activated from the 10-day IL and Luiz Vasquez is ready to get a shot with the big-league club. Mastrobuoni will likely be seen again in the majors this season considering his versatility.

Crow-Armstrong was optioned to Triple-A Iowa on Monday.

Crow-Armstrong will return to Iowa after joining the major-league roster in late April, batting .236 with one home run, nine RBI, four runs scored and five stolen bases over 55 at-bats in 23 contests. The 22-year-old had been struggling to find consistent playing time in Chicago's lineup recently and he'll now see some extended run once again at Triple-A.

Swanson (knee) was activated from the 10-day injured list Monday night, per MLB's transaction log.

Swanson was expected to be activated prior to Tuesday's game against Atlanta, and the team has elected to make the move official a bit earlier than anticipated despite not having a game Monday. Miles Mastrobuoni and Pete Crow-Armstrong were optioned to Triple-A Iowa in corresponding moves, making room for the upcoming promotion of Luis Vazquez.

May (elbow) has started throwing off a mound at the Dodgers' team facility in Arizona, Eric Stephen of SBNation.com reports.

May has been slowly working his way back from the surgery underwent on his right flexor tendon and UCL in July. The right-hander will progressively increase his workload on the mound before he'll likely throw live batting practice and ultimately go on an extended minor-league rehab assignment. The organization will likely be especially cautious in their approach to May's recovery and his return to the majors is currently projected to come around the All-Star break.

Kelly (shoulder) is set to begin his throwing program Monday, Eric Stephen of SBNation.com reports.

Kelly has been on the 15-day injured list since May 6 with a right shoulder strain and he will now take the first step towards making his return. The right-hander will likely need to build up his workload and even potentially make a trip to the minors for a rehab assignment. Depending on how his shoulder responds to the beginning of his throwing program, Kelly will receive a timetable for his return, which currently appears to be at least a week away at the earliest.

Miller (shoulder) is expected to throw a simulated game Tuesday, Eric Stephen of SBNation.com reports.

Miller continues to make progress in his recovery after being sent to the 15-day injured list April 13 due to right shoulder inflammation. He successfully completed a bullpen session Saturday, and as expected, he's now been given the green light to toss a sim game. Miller will likely be sent out on a rehab assignment later in the week, assuming all goes well Tuesday.

Phillips (hamstring) is expected to make 2-to-3 rehab appearances before being activated from the 15-day injured list, Eric Stephen of SBNation.com reports.

Stephen estimates that Phillips is about a week away from a return, though how the right-hander fares during his rehab outings will ultimately dictate his exact return date. He's been shut down since May 3 since suffering a right hamstring strain.

Ross was removed from Monday's start against the Marlins after one scoreless inning due to back tightness, Sophia Minnaert of Bally Sports Wisconsin reports.

Ross was reportedly dealing with some back tightness before Monday's start, but he felt good enough to give it a go after warming up. However, his back tightened back up during a 15-pitch first inning, and he's been officially diagnosed with a low back strain. Jared Koenig was called upon out of the bullpen following the right-hander's departure and will likely be asked to eat up a few frames.