Stephan (elbow) resumed his rehab assignment at Triple-A Columbus over the weekend, issuing one walk in a scoreless inning Friday.

Stephan is in the midst of his second rehab assignment after the Guardians opted to extend his stay in the minors when his initial 30-day window expired shortly before the All-Star break. During the initial assignment, Stephan made eight appearances across stops with three affiliates and logged a 5.40 ERA and 1.44 WHIP in 8.1 innings. Stephan has made two appearances for Columbus during his second assignment, with Friday's outing marking his first since the All-Star break. The right-hander will likely need to sharpen his command and pitch on consecutive days at Triple-A before the Guardians bring him back from the 60-day injured list.

Sewald (shoulder) was diagnosed with a moderate teres major strain after undergoing an MRI over the All-Star break, MLB.com reports.

Sewald was initially placed on the injured list July 15 due to a right shoulder strain, but the Guardians didn't offer up a timeline for his return. The fact that Sewald has been diagnosed with a moderate strain rather than a mild one suggests that he likely won't be in line for a brief stint on the shelf, and his absence could end up stretching into September. Prior to landing on the shelf, Sewald made 18 appearances out of the Cleveland bullpen and logged a 4.70 ERA, 1.17 WHIP and 18:4 K:BB in 15.1 innings.

The Rockies optioned Anderson to Triple-A Albuquerque on Monday.

Anderson will give up his spot on the 26-man active roster and in the bullpen to right-hander Victor Vodnik (personal), who was reinstated from the paternity list. After getting called up from Triple-A on Friday, Anderson made his Rockies debut in Saturday's 18-0 loss to Baltimore, serving up five earned runs on six hits over one inning of relief.

The Rockies activated Vodnik (personal) from the paternity list Monday.

Vodnik missed the weekend series in Baltimore while welcoming a new addition to the family, but he's back in the Colorado bullpen for the start of a series in Cleveland. The righty has six holds and two saves this season and will continue to work in a high-leverage role for the Rockies.

The Guardians announced Monday that Clase has been placed on non-disciplinary paid leave through Aug. 31 as part of MLB's sports-betting investigation, Zack Meisel of The Athletic reports.

Clase becomes the second Guardians pitcher to be placed on the restricted list in connection with the investigation, as right-hander Luis L. Ortiz previously went on leave earlier in this month. The 27-year-old righty has taken a step back statistically this season but has still performed as one of baseball's top closers, notching saves in 24 of 29 chances while logging a 3.23 ERA and 1.23 WHIP in 47.1 innings. The 52-53 Guardians are 3.5 games behind for the final wild-card spot in the American League and may have considered moving Clase ahead of Thursday's trade deadline, but his placement on non-disciplinary leave likely takes any potential deal off the table. While Clase is out for at least the next month, right-hander Cade Smith (3.02 ERA, 1.19 WHIP and 65:17 K:BB in 44.2 innings) looks like the next man up for save chances in the Cleveland bullpen, though manager Stephen Vogt could opt for a committee approach at closer.

The Twins selected Tonkin's contract from Triple-A St. Paul on Monday.

Tonkin has spent all of this season in the minors, posting a 4.82 ERA but a much more promising 34:7 K:BB over 28 innings with St. Paul. He will give manager Rocco Baldelli a fresh bullpen arm.

Marsh received an injection for his sore right shoulder last week, MLB.com reports.

Marsh has yet to pitch at any level this season after he first experienced shoulder tightness early on during spring training before suffering multiple setbacks in the subsequent months. He's in the midst of a rest period while he waits for the injection to alleviate the discomfort in his shoulder, but if the shot provides the desired effect, he could soon restart a throwing program. Even if he's able to steer clear of any further setbacks, Marsh will likely require an extended ramp-up program and probably won't be a realistic candidate to return from the 60-day injured list until late August at the soonest.

Gage started Sunday's 5-3 loss to the Mets, tossing a perfect inning while striking out one.

Gage made his first major-league start in Sunday's bullpen game, throwing seven of his 10 pitches for strikes. The left-hander had his contract selected from Triple-A Sacramento on July 18 and has now appeared in four games with San Francisco, surrendering a hit and a walk while striking out five across five innings. The 32-year-old has yet to give up a run through 10 outings between the Tigers and Giants this season, allowing eight hits with an 8:3 K:BB across 10.2 innings.

The Giants optioned Hjelle to Triple-A Sacramento on Monday.

Hjelle made two relief appearances during his most recent stint with the big club, getting charged with three runs over two frames. His removal from the 26-man active roster clears a spot for lefty Carson Whisenhunt, who will be called up from Sacramento to make his major-league debut Monday against the Pirates.

The Guardians optioned Kent to Triple-A Columbus on Sunday.

Kent served as the 27th man during Saturday's doubleheader against the Royals but did not make an appearance. He will rejoin the bullpen at Columbus.