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.

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.

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.

Gallen did not factor into the decision in Sunday's win over the Brewers, allowing three runs on six hits and two walks while striking out seven over five innings.

Gallen was able to work around some traffic on the bases in both the first and third innings to keep the Brewers off the scoreboard but didn't have the same fortune in the fifth. Eric Haase and Brice Turang started off the frame with singles before Jackson Chourio brought them all home with a home run to left center. It was just the second home run Gallen has given up since July 20 and he's struck out at least seven in five straight starts, however he's also issued multiple walks in 10 of his last 11 starts. For the year, he's at a 3.61 ERA, 1.28 WHIP and 140:51 K:BB in 137 innings and lines up for another meeting against the Brewers in Milwaukee this weekend.

Hall did not factor into the decision during Sunday's loss to the Diamondbacks, allowing five runs on five hits and three walks while striking out four in three innings.

Four singles in the first inning led to two runs for the Diamondbacks. They would score three more in the third with just one hit after Hall loaded the bases and Pavin Smith cleared them with a double. It was a step backwards for Hall, who was working on 12.2 scoreless innings across his last three appearances coming into Sunday. He's shown upside at times but owns a 4.91 ERA, 1.64 WHIP and 38:20 K:BB in 36.2 innings. It's possible he gets another start, but he'll likely return to a relief role for now.

Morton did not factor into the decision in Sunday's loss to the Dodgers, allowing one run on three hits and two walks while striking out six over six innings.

Morton blanked the Dodgers through four innings and allowed just two baserunners. They eventually got one in the fifth off a Shohei Ohtani double after the Dodgers opened up the frame with a single and a walk. Morton now has consecutive quality starts for the first time since July and has a 2.68 ERA over his last seven starts. He's now down to a 4.01 ERA, 1.30 WHIP and 161:59 K:BB in 155 innings and lines up for a favorable start against Miami later in the week.

Buehler did not factor into the decision in Sunday's win over Atlanta, allowing two runs (one earned) on three hits and five walks while striking out five over six innings.

The five walks were not ideal for Buehler, who had three walks in the third inning, which contributed to two runs for Atlanta in the frame. Overall, he had one of his better outings of the season. It was his first time since May 31 reaching six innings and his second time over the last six starts allowing fewer than three earned runs. Buehler now owns a 5.54 ERA, 1.62 WHIP and 54:26 K:BB in 65 innings and will look to keep the momentum going in his next start against Colorado over the weekend.

Perez allowed a run on two hits and a walk while striking out two over five-plus innings in a no-decision versus the Giants on Sunday.

The lone mistake on Perez's line was a solo home run by Donovan Walton in the sixth inning, which tied the game at 1-1. Perez ended up missing one turn through the rotation while on the paternity list. He's allowed multiple runs just three times over eight starts since he was traded from the Pirates to the Padres, though he's completed six innings just three times in that span. Perez has a 4.36 ERA, 1.47 WHIP and 98:44 K:BB across 126 innings through 24 starts this year. He's lined up to make his next start at home versus the White Sox.

Quantrill (8-10) allowed two runs on four hits and six walks while striking out two over 2.1 innings to take the loss Sunday versus the Cubs.

Quantrill had a short stay on the injured list due to a tricep injury, but he didn't look good in his return. He threw 69 pitches, with just 34 of them being strikes, while the six walks were a season high in his shortest appearance of the year. There was no report of another injury after the game, so this appears to just be a poor performance at this time. Quantrill has struggled to a 4.68 ERA, 1.47 WHIP and 105:63 K:BB through 140.1 innings over 27 starts this season. His next start is tentatively projected to be a tough one on the road versus the Dodgers.

Hendricks (4-11) allowed one run on two hits across six innings to earn the win Sunday against the Rockies. He walked three and struck out seven.

Hendricks hasn't been very good lately, as he came into this start with a 6.10 ERA and 1.89 WHIP across his last five outings, but he turned back the clock Sunday with a vintage performance. The veteran righty came within one strikeout of his season high, and the two hits allowed tied for his fewest allowed in a start this year. The surprisingly effective appearance might be the last start of the season for Hendricks, however, as Justin Steele (elbow) appears ready to rejoin the rotation in the next few days. When that happens, Hendricks could be pushed back into a long-relief role.