Montgomery is slated to start Tuesday's game against the Rockies at Coors Field, Jesse Friedman of GoPHNX.com reports.

As expected, Montgomery will return to the Arizona rotation as a replacement for the injured Ryne Nelson (shoulder) following a three-week stint in the bullpen. Montgomery shifted to a relief role after producing a 6.44 ERA over his 19 starts this season, and he didn't fare much better over his four appearances out of the bullpen (4.85 ERA, 1.38 WHIP and 6:4 K:BB in 13 innings). The southpaw covered three-plus innings in three of those relief outings, so he at least should be relatively stretched out as he re-enters the rotation Tuesday.

The Twins claimed Irvin off waivers from the Orioles on Monday, Dan Hayes of The Athletic reports.

Irvin remained in the Baltimore organization after being designated for assignment back in late July, but he did not pass through waivers this time around. The left-hander offers the Twins the versatility to be used as a starter or reliever, but he'll probably be bound for the bullpen after having not started a game since August. Irvin will officially join the Twins' 28-man active roster Tuesday.

Lorenzen (hamstring) struck out four and allowed one earned run on two hits and two walks over 3.1 innings in his rehab start Friday with Triple-A Omaha.

Lorenzen took the hill for Omaha on two days' rest after opening his rehab assignment with a 1.2-inning appearance for Double-A Northwest Arkansas on Tuesday. According to MLB.com, Royals manager Matt Quatraro said Sunday that Lorenzen felt more soreness than usual in his most recent rehab outing, so he'll be re-examined in Kansas City this week before the club determines his next step. Alec Marsh has been filling in as the Royals' No. 5 starter while Lorenzen has been on the shelf with a left hamstring strain.

Oviedo (elbow) has been throwing from 120 feet four times per week, MLB.com reports.

Oviedo has progressively ramped up his throwing distance and has not experienced any documented setbacks. He is expected to be ready for spring training, though his role on the team is unclear given the number of options the Pirates are projected to have for the rotation.

Carrasco (hip) began a rehab assignment Friday with Double-A Akron, covering three innings and striking out three while allowing two earned runs on three hits and no walks.

Carrasco tossed 41 pitches (27 strikes) in the outing, his first since he landed on the 15-day injured list Aug. 9 with a left hip strain. Though the Guardians wouldn't seem to have an opening in the rotation for Carrasco with rookie Joey Cantillo thriving of late as the club's new No. 5 starter in place of the injured Alex Cobb (finger), Cleveland manager Stephen Vogt told MLB.com on Sept. 3 that he still envisions Carrasco returning from the IL as an option to start. Carrasco is still expected to require at least one more rehab start in the minors before the Guardians activate him and make a decision on his role.

Sears (11-11) yielded four runs on seven hits and a walk over six innings Sunday, striking out four and taking a loss against the White Sox.

Most of the damage against Sears came in the first inning; he gave up an RBI single to Andrew Vaughn before Gavin Sheets belted a two-run shot. Bryan Ramos then knocked a solo homer in the sixth. Sears has given up at least four runs in three of his last five outings, resulting in a 4.71 ERA over 28.2 innings. His season ERA now sits at 4.24 with a 127:44 K:BB through 30 starts. Sears is in line for a home matchup with the Yankees this weekend.

Kirby (12-11) got the win Sunday over the Rangers after tossing seven scoreless innings while allowing just one hit and striking out three.

The lone hit against Kirby was a single in the second inning and he immediately got a double-play ball on the very next pitch. It was Kirby's 27th quality start with zero walks since 2022, which is seven more than any other player over that span. Seven innings ties his longest outing of the year, and it was his first time going that deep since July 26. His strikeout numbers have dipped a bit lately, as he's struck out fewer than five batters in four of his last five starts. Overall, Kirby is enjoying another strong campaign with a 3.62 ERA, 1.08 WHIP and 169:22 K:BB in 179 innings. His next start projects to come on the road against the Rangers again this weekend.

Burke (1-0) yielded two runs on five hits and two walks over five innings Sunday, striking out five and earning a win against the Athletics.

Burke sprinkled a few baserunners over four shutout frames before Brent Rooker drilled a two-run shot in the fifth inning. Burke picked up his first career win in his second MLB appearance. He forced 15 whiffs, including seven with the slider. Burke has registered a 2.25 ERA and an 8:3 K:BB through eight MLB frames. He's in line for a weekend start in San Diego.

Brubaker (elbow/oblique) resumed a rehab assignment with Triple-A Scranton/Wilkes-Barre on Sunday, striking out one in a perfect inning.

Brubaker made his first appearance in more than two months, as his rehab from Tommy John surgery had to be paused due to an oblique strain. The 30-year-old could be activated from the 60-day injured list before the end of the regular season, though it's difficult to imagine him pitching in anything more than a mop-up role out of the Yankees bullpen.

Mikolas allowed two runs on three hits over five innings in a no-decision Sunday. He struck out four during the loss to Toronto.

Mikolas worked through four shutout innings before coughing up a two-run shot to Davis Schneider in the fifth. Mikolas has failed to complete six innings in four straight starts, posting a brutal 8.10 ERA during that stretch. He hasn't earned a win since July 21 and owns a 6.80 ERA in nine outings since then. Mikolas will carry a 5.49 ERA into his next matchup, which is projected to be at home against the Guardians.