Ryan (glute) struck out four batters and allowed one earned run on one hit and no walks across three innings in a rehab start Tuesday with Triple-A St. Paul.
Gilbert cleared waivers Thursday and was sent outright to Triple-A Charlotte, James Fegan of the Chicago Sun-Times reports.
Romo is absent from the lineup for Thursday's contest in Houston.
Martin allowed five hits and a walk while striking out three over 5.2 scoreless innings in a no-decision versus the Astros on Wednesday.
Peters went 2-for-3 with a triple and a stolen base in Wednesday's 2-0 loss to the Astros.
Kremer took a no-decision against the Tigers on Wednesday, allowing four runs on six hits and two walks in four-plus innings. He struck out five.
Berroa (elbow) is scheduled to begin throwing off a mound next week, Scott Merkin of MLB.com reports.
Bush (elbow) has been shut down for the 2026 season due to a strained left lat, Scott Merkin of MLB.com reports.
Brazoban (lat) will begin a rehab assignment with Triple-A Charlotte on Wednesday, James Fegan of the Chicago Sun-Times reports.
The White Sox activated Martin (finger) from the 15-day injured list Wednesday, James Fegan of the Chicago Sun-Times reports.
So far, no good for Luis Castillo since being moved from the Mariners to the White Sox. He owns a 5.89 ERA in four starts, and that includes a seven-inning, one-hit gem vs. the Reds. But he can hold his own against a Twins team that’s lost five of six, scored two runs or fewer in half of them. The Sox offense put up 11 and 10 in its last two games. Twins RHP Dean Kremer has been solid in four starts from Minnesota after being moved by the Orioles, but he was dreadful in his final outings for Baltimore. The law of averages says he’s eventually going to fall back, and Chicago has the offense to spark such a turn.
