Warren will not start in the second game of Friday's doubleheader against the Orioles, Gary Phillips of the New York Daily News reports.
Instead, the Yankees will deploy Ryan Yarbrough as the opener for the second game of Friday's twin bill, with Warren expected to follow the former. In 12 games since the All-Star break, Warren has a 4.00 ERA and 1.41 WHIP across 54 innings.