Nova, 23, was 2-0 with a 2.43 ERA in six starts with Scranton/Wilkes-Barre, leading the team with 32 strikeouts and ranking third with 37 innings. Nova's flight from Scranton was scheduled to land around game time on Monday.
"I liked his command, I liked his poise, I liked his fastball and changeup," said Yankees manager Joe Girardi, who saw Nova during Spring Training. "He had good stuff. He's just a young man that really just needs to pitch, and he's been pitching well in Triple-A."
Sanchez hurled 3 2/3 scoreless innings of one-hit ball on Sunday against the Red Sox in relief of starter A.J. Burnett, who was knocked out in the fifth inning of a 9-3 loss.