Bubba Chandler's MLB Debut: A Rocky Start Against the Brewers

Bubba Chandler, the highly regarded pitching prospect for the Pittsburgh Pirates, made his first career Major League Baseball (MLB) start on September 7, 2025, against the Milwaukee Brewers. The matchup featured Chandler, who had previously shown promise in relief appearances, facing fellow rookie Jacob Misiorowski. The game ended in a decisive 10-2 victory for the Brewers, completing a three-game series sweep.

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Chandler's debut as a starter did not go as planned. He struggled significantly, allowing nine runs on nine hits and three walks over just 2.2 innings. The Brewers capitalized on his early command issues, scoring four runs in the first inning alone, highlighted by a two-run double from Jake Bauers. Chandler's performance marked a stark contrast to his previous outings, where he had recorded a 2.25 ERA in relief.

Pirates Routed By Brewers; Chandler Knocked Around in First Start, Misiorowski Shines

In contrast, Jacob Misiorowski delivered a stellar performance for the Brewers, pitching a career-high seven innings and allowing only one run on three hits while striking out eight batters. Misiorowski's ability to control the game after a shaky start showcased his potential as a future ace for the Brewers.

Reuters

Following the game, Chandler expressed disappointment, stating, “All you can do is flush it... I just put our team in a horrible situation today from the get-go, and it sucks.” Pirates manager Don Kelly acknowledged Chandler's struggles but emphasized his belief in the young pitcher's potential, stating, “I know the competitor that Bubba is... He’ll be ready to go next time he’s out there.”

Reuters

Critics of Chandler's performance highlighted the stark difference between his minor league success and his struggles in the majors. Despite being MLB Pipeline's top-ranked pitching prospect, his inability to find his rhythm raised concerns about his readiness for the big leagues. Some analysts noted that the Pirates may have rushed his promotion, given his recent minor league struggles.

Pirates’ Bubba Chandler Will Make First Career Major League Start

The loss dropped the Pirates to a 64-80 record, while the Brewers improved to 89-55, tying their franchise record for wins in a season. Chandler's ERA ballooned from 2.25 to 7.36 following this outing, raising questions about his future role in the rotation. The Pirates will need to regroup quickly as they head into a six-game road trip, with Chandler expected to learn from this experience.

Bubba Chandler’s rocky start against Brewers forces Pirates rookie off the mound early in dramatic exit

The Pirates will face the Baltimore Orioles in their next series, with RHP Mike Burrows slated to start. Meanwhile, the Brewers will continue their push for the playoffs, having solidified their position at the top of the National League Central.

Pirates Routed By Brewers; Chandler Knocked Around in First Start, Misiorowski Shines

• “He’s going to be back to the drawing board with (pitching coach) Oscar (Marin) and the pitching group, refining some things. He’ll be ready to go next time he’s out there.” — Don Kelly, Manager, Pittsburgh Pirates

Pittsburgh Tribune Review

Chandler's debut serves as a reminder of the challenges faced by rookie pitchers in the MLB, and while this outing was difficult, it may ultimately contribute to his development as a player.

Bubba Chandler’s rocky start against Brewers forces Pirates rookie off the mound early in dramatic exit