Air Force coach Troy Calhoun did his best on Sunday night to avoid naming a starting quarterback for Saturday’s showdown with service academy rival Navy.

Sophomore Connor Dietz made his first collegiate start in the Falcons’ 26-14 victory over San Diego State two days ago, filling in for sophomore Tim Jefferson, who sprained his right ankle a week earlier during Air Force’s game at New Mexico. Jefferson dressed for the game but did not play.

“We’ve got to see if he’s ready to go full-tilt,” Calhoun said of Jefferson. “And I think there’s a pretty good chance that he will.”

Asked if Jefferson would regain his starting role if he looks healthy in practice, Calhoun replied, “I just think you’ve got to see where they both are, but specifically see where T.J. is.”

He then joked, “Am I noncommittal right now?

“I just think you’ve got to go out there (today) and also the following day and get a sense if he’s full speed or not.”

Calhoun also said sophomore tailback Asher Clark, who injured his shoulder against the Aztecs, is in “a wait-and-see situation” as far as whether he’ll be able to play against the Midshipmen.

Two other players who left the game against San Diego State early because of injury — senior strong safety Chris Thomas and senior tackle Chris Campbell — both should be able to play at Navy, Calhoun said.