Falter will start Friday against the Mets, Todd Zolecki of MLB.com reports.
Falter is currently pitching at Triple-A Lehigh Valley, though he will be called up prior to the team's weekend series. No injury has been announced to a member of the Phillies' rotation, so presumably the Phillies are just pushing everyone back a day. Falter has maintained a 3.75 ERA, 1.25 WHIP and 7:2 K:BB across 12 innings in the majors this season, though that has come primarily out of the bullpen.