Atlanta placed Riley on the paternity list Monday.
Riley was removed from Monday's 4-1 loss to the Reds in the ninth inning after his wife went into labor, and he's now officially on the paternity list as he welcomes a new arrival to the family. He is expected to be back with Atlanta for the start of its series Thursday against the Mets, per David O'Brien of The Athletic. Nacho Alvarez is handling third base Tuesday while Zack Short occupies second base.