The Phillies will call up Keller from Triple-A Lehigh Valley to either start or pitch in bulk relief Saturday against the Yankees, Matt Gelb of The Athletic reports.
Keller inked a minor-league contract with the Phillies in May and has logged a 2.23 ERA, 1.02 WHIP and 38:11 K:BB in 36.1 innings over eight starts for Lehigh Valley. The 32-year-old will be making his major-league debut Saturday after seven seasons in the minors and one in Japan.