Brandon Williamson logs 4 strong innings in Louisville as Reds work through left-shoulder rehab

Brandon Williamson’s return road for the Cincinnati Reds took another step on Saturday, when he worked four innings for Triple-A Louisville as part of his rehab assignment. The club is treating the stint as a ramp-up toward a potential return to the Cincinnati rotation, with each start meant to test both command and stamina after a left-shoulder issue sidelined him earlier in the year.

In his fifth rehab start, Williamson allowed two hits and one earned run over four innings. He threw 75 pitches, with 41 going for strikes, and while he did walk four batters, he also struck out five, showing a workable mix of misses and swings-and-misses at the Triple-A level.

The effort came on the heels of time away from the Reds roster. Williamson has not appeared in a Cincinnati game since April 29, when he allowed four hits and four runs on 58 pitches over three innings. The Reds placed him on the 15-day injured list on April 30 with left-shoulder fatigue, a timeline that has since grown more complicated.

After the shoulder injury put his throwing program on pause, Williamson later injured a finger during a workout in late June, forcing another break in his build-up. That added setback helped explain why the rehab is taking multiple turns rather than a single uninterrupted progression from bullpen work to games.

At age 28, Williamson remains a starting option whose value to Cincinnati depends as much on how his shoulder responds under workload as it does on the final stat line. The current run in Louisville is designed to confirm that he can complete a full starter’s segment without compromising velocity, mechanics, or control as the pitch count rises.

The near-term picture is straightforward for Cincinnati and for Williamson. The Reds will continue to evaluate results from each rehab appearance, including how quickly he settles after walks and whether he can repeat strike-throwing over multiple frames. For Louisville, the benefit is innings and game reps for a pitcher with a clear pathway back to a major-league rotation role.

For Reds fans, the next thing to watch is not just whether Williamson can reach deeper into his starts, but whether his ability to generate outs stays consistent as the assignment advances beyond the four-inning window. Each rehab turn will likely be judged against both performance and how his shoulder and finger recover between outings.