Mazur is listed as the Marlins' probable starting pitcher for Tuesday's game in Washington, Kevin Barral of FishonFirst.com reports.

Mazur will draw a second turn through the rotation after he took a no-decision against the Mets on Thursday following his promotion from Triple-A Jacksonville. In that start, Mazur struck out two batters while allowing two earned runs on four hits and one walk. The upcoming start against the Nationals represents a more favorable matchup than the one with the Mets, but Mazur's lack of a track record of success in the majors coupled with his so-so numbers for Jacksonville this season (4.36 ERA, 1.30 WHIP and 100:30 K:BB in 107.1 innings) make him difficult to rely upon as a streaming option.

McCullers struck out three and allowed two earned runs on three hits and two walks across two innings of relief in Sunday's 3-0 loss to the Angels.

Working out of the bullpen for the first time in the majors since 2018, McCullers kept the Angels off the board in the seventh inning, but he allowed five of the first six runners he faced in the eighth to reach base, with two coming around to score. Finding more success in his future relief appearances in September likely represents McCullers' clearest path to earning a spot on the Astros' postseason roster, as he doesn't appear likely to get another look in the rotation anytime soon unless the team loses another starter to an injury. Houston appears set to maintain a six-man rotation during the final month of the season, but McCullers will give up his spot to Luis Garcia (elbow), who will be activated from the 60-day injured list to start Monday's series finale. Before shifting to the bullpen this weekend, McCullers struggled mightily over his 12 starts with the Astros, logging a 6.89 ERA, 1.80 WHIP and 54:34 K:BB in 48.1 innings.

Woodruff (5-2) yielded eight runs (five earned) on 10 hits and two walks over 4.1 innings Sunday, striking out three and taking a loss against Toronto.

Woodruff struggled early Sunday and never recovered. The Blue Jays posted three unearned runs in the first inning, and Woodruff would later cough up five more runs, all earned. He set a new career high with eight total runs allowed. After posting a 2.47 ERA in his first eight starts of the year, Woodruff has given up 10 earned runs over 10 frames in his last two outings. The recent struggles have ballooned his ERA to 3.69 with a 66:14 K:BB through 53.2 innings this season. Woodruff is projected to start in Pittsburgh next weekend.

Harrison was scratched ahead of his scheduled start with Triple-A Worcester and could be called up to start or pitch in bulk relief Wednesday against the Guardians in Boston, Chris Hatfield of SoxProspects.com reports.

Harrison had been a candidate to join the big-league rotation this past week when the Red Sox moved Walker Buehler to the bullpen and later released him, but the southpaw was bypassed for a promotion in favor of fellow Triple-A starter Payton Tolle. Though Tolle impressed in his MLB debut while striking out eight batters and allowing two earned runs over 5.1 innings in Friday's 4-2 loss to the Pirates, the Red Sox appear committed to keeping the 22-year-old on at least a five-day rest schedule between outings. As a result, Tolle doesn't appear to be in line to start Wednesday's series finale versus the Guardians, opening the door for Harrison or another pitcher to temporarily step into the rotation. The Red Sox could also opt to treat Wednesday's game as a bullpen day in lieu of calling up Harrison, who has submitted a 3.65 ERA and 1.57 WHIP in 49.1 innings with Worcester this season.

The Cubs plan to use Civale out of the bullpen after claiming him off waivers from the White Sox on Sunday, Jesse Rogers of ESPN.com reports.

Civale was reluctant to pitch out of the bullpen for Milwaukee before he was traded to the White Sox on June 13, but he'll have to settle for a relief role as he moves on to his third team of the season. The veteran righty had a stretch of three straight scoreless outings coming out of the All-Star break, but he otherwise turned in an unremarkable 13-start run with the White Sox, logging a 5.37 ERA, 1.37 WHIP and 55:26 K:BB in 67 innings. The Cubs will likely keep Civale stretched out in a long-relief role in the event that a spot in the rotation opens up in September, but for now, the team appears set to proceed with Colin Rea and Javier Assad as its back-end starters until Jameson Taillon (groin) and/or Michael Soroka (shoulder) return from the injured list.

Skubal (12-4) pitched seven scoreless innings with four strikeouts to collect the win Sunday at Kansas City. He allowed four hits and two walks.

The Detroit ace didn't have his sharpest stuff in this 93-pitch outing, generating only eight whiffs, as he tallied four or fewer punchouts for just the fourth time this season. The Royals lineup never sniffed a run against Skubal, who has now posted a quality start in four consecutive appearances. The reigning AL Cy Young Award winner has continued his run as one of the game's best pitchers, firing a 2.18 ERA, 0.87 WHIP and 216:27 K:BB across 173 total innings. Skubal currently lines up to make his next start at home against the White Sox next weekend.

Wacha (8-11) took the loss Sunday against the Tigers, conceding four runs on five hits and a walk over 4.2 innings. He struck out four.

The veteran righty returned from the paternity list and did not look sharp in this 71-pitch appearance, inducing only five whiffs. Wacha fired four scoreless frames before falling apart in the fifth, coughing up four runs on four hits, including two extra-base knocks. Through 153.1 innings, the 34-year-old now sports a 3.52 ERA, 1.19 WHIP and 112:39 K:BB. Wacha will look to bounce back in his next outing, currently scheduled to come at home against the Twins next weekend.

Dodgers manager Dave Roberts said Saturday that Sheehan will have his next turn through the rotation skipped, Sonja Chen of MLB.com reports.

Since Blake Snell returned from the injured list earlier in August, the Dodgers had been running a six-man rotation featuring Sheehan, but the team will temporarily scale back to five starters amid a stretch of three games in five days. Because Sheehan is in his first season back from May 2024 Tommy John surgery, the Dodgers have some added incentive to hold the right-hander out for a turn. Sheehan was available out of the bullpen but went unused in Sunday's 5-4 win over the Diamondbacks, and assuming he's not needed in relief for the Dodgers- upcoming three-game series in Pittsburgh, he could re-enter the rotation next weekend in Baltimore.

Senga (7-6) yielded five runs on seven hits and two walks over 4.2 innings Sunday, striking out six and taking a loss against Miami.

Senga never settled into a groove Sunday and was chased after just 75 pitches (43 strikes). Four of the five runs against him came after the second inning, including Agustin Ramirez's two-run shot in the third. Senga went into the All-Star break with a stellar 1.39 ERA, but he's since produced a 6.56 ERA over 35.2 innings. He's allowed at least three earned runs in six of his last eight outings, and he hasn't turned in a quality start since June 6. Senga will carry a 3.02 ERA into his next matchup, which is projected to be in Cincinnati next weekend.

Burrows struck out two and allowed one earned run on five hits over two innings of relief In Saturday's 10-3 win over the Red Sox.

Though Burrows had been one of the team's top starters since the All-Star break with a 3.53 ERA and 0.98 WHIP over his previous seven outings, the Pirates opted to shift him to the bullpen this weekend. The role change was seemingly motivated by a desire to keep Burrows' workload in check, as the right-hander has already totaled 108.2 frames between the majors and minors in 2025 after accruing 54.2 innings in 2024 once he completed his recovery from his April 2023 Tommy John surgery. The Pirates haven't offered up a precise target for Burrows' innings count this season, and it's unclear if or when he might rejoin the rotation. Per Kevin Gorman of TribLive.com, the Pirates aren't listing Burrows among their starters for their three-game series with the Dodgers that begins Tuesday, so the 25-year-old appears set to remain in the bullpen for at least this week.