Betances, 23, is the Yankees' No. 3 prospect, according to MLB.com. He went a combined 4-9 with a 3.70 ERA in 25 starts between Double-A Trenton and Triple-A Scranton/Wilkes-Barre this season, striking out 142. Opponents combined to bat .217 off Betances, though he struggled at Triple-A, where he was 0-3 with a 5.14 ERA in four starts.
"I feel like it was definitely a grind, a battle, an up-and-down year," Betances said. "[I was] just inconsistent. It's one of those things that, I worked hard mechanically, and I feel a lot better now.
"I definitely accomplished my goals, which [were] to come here and stay healthy throughout the year. Those two goals were my main focus, and thank God everything has gone well."
While most of Betances' experiences the rest of the month may just be to get a taste of big league life, Yankees manager Joe Girardi said he'd consider putting Betances in a game.
"If we need him, we're going to use him," Girardi said. "He's been a starter in his career, so he really hasn't pitched out of the bullpen. If we got a long-relief situation, we could use him for a couple innings and maybe get his feet wet."
Girardi said that if he were to use Betances, it would be in a situation where the right-hander would have plenty of time to warm up, though Betances pointed out that he did pitch in relief in the Eastern League All-Star Game.
"I'll be ready -- it's just kind of the same thing, just try to throw less pitches," Betances said. "It's definitely a different warmup process, but I'll just try to get advice from these guys that have been doing it for years."
Betances will be the last of the Yankees' September callups this year. The team discussed promoting left-hander Manny Banuelos but decided not to, Girardi said.