The Yankees have tabbed right-hander Hector Noesi to make his first Major League start in Hughes' place. Manager Joe Girardi said that he will look for Noesi to provide about 50 to 60 pitches.
"We'll put it together after that," Girardi said. "I feel good about it because our bullpen got some rest last night. We have some guys down there that can give us some distance if we do need them."
Noesi is 2-1 with a 4.01 ERA in 28 appearances for New York, and was 1-1 with a 3.28 ERA in six games (five starts) at Triple-A Scranton/Wilkes-Barre this year.
Hughes felt the spasms during a bullpen session in Toronto on Friday, pushing back a start that had been set for Monday against the Twins.
"He's better. If you could have seen him Friday, he wasn't walking around very well," Girardi said. "He's gotten better, but ... a starting pitcher has got to have flexibility in his back, or he's going to be standing straight up and he's not going to be able to throw the ball. He is improving every day."
It is possible that Andrew Brackman or Dellin Betances could make their big league debuts in relief to help the staff get through the doubleheader.
The Yankees plan to start left-hander CC Sabathia in the second game.
"Our rotation has found a way to get it done all year long, and I believe they'll continue to do it," Girardi said