Castillo allowed four runs on eight hits and a walk while striking out a batter over four innings Friday against the Twins. He didn't factor into the decision.
Castillo gave up multiple homers for a third consecutive start, and he's also failed to complete five innings in any of those outings. He's made five starts since joining the White Sox at the trade deadline, and the numbers have been less than impressive -- he owns a 6.45 ERA, 1.66 WHIP and 2.8 HR/9 across 22.1 innings over that stretch. He's tentatively scheduled to make his next start on the road against the Astros.