Schlittler will start against the Red Sox on Tuesday in Game 1 of the American League Wild Card Series.
There had been some talk that New York might go with lefty Max Fried in the series opener, but manager Aaron Boone ultimately settled on Schlittler as his Game 1 starter. Schlittler is the favorite to win the AL Cy Young Award after he went 14-6 with a 1.95 ERA, 0.92 WHIP and 239:49 K:BB over 193.2 innings for the Yankees during the regular season.