Conforto isn't in the lineup Wednesday for Game 2 of the NL Wild Card Series against the Padres.
Boyd (0-1) took the loss in Game 1 of the NL Wild Card Series against the Padres on Tuesday. He gave up four runs on five hits with four strikeouts and a walk over four innings.
The Cubs outrighted Kelly to Triple-A Iowa on Tuesday.
Gausman will start Game 2 of the wild-card series versus the Padres on Wednesday, Sahadev Sharma of The Athletic reports.
Gausman (shoulder) is on the Cubs' roster for the wild-card series against the Padres, Jared Wyllys of AllCHGO.com reports.
Steele (elbow) is not on the Cubs' roster for their wild-card series versus the Padres, Meghan Montemurro of the Chicago Tribune reports.
Thielbar is not on the Cubs' roster for their NL Wild Card Series against the Padres, Meghan Montemurro of the Chicago Tribune reports.
Marlins president of baseball operations Peter Bendix said Tuesday that Mazur (elbow) should be ready to pitch in games by April or May of next season, Isaac Azout of FishOnFirst.com reports.
Marlins president of baseball operations Peter Bendix said Tuesday that Marsee will visit Dr. Keith Meister after dealing with left elbow soreness down the stretch of the regular season, Christina De Nicola of MLB.com reports.