Air Force linebacker Ken Lamendola will miss a few weeks with an ankle injury he suffered Wednesday.

Falcons coach Troy Calhoun said a specific timetable for Lamendola’s return can can set in 7-10 days after the swelling subsides a bit, but Calhoun mentioned it could be “some weeks.”

“We just have to see what the timeframe is,” Calhoun said. “I think we’ll have a better idea in a week.”

Lamendola suffered no broken bones or knee damage. He was trailing a ballcarrier when he suddenly went down. Calhoun described the injury as his ankle coming out of its socket momentarily before popping back in. Lamendola had surgery last year for chronic ankle instability. He also had two knee surgeries since last playing in October of 2009.

With Lamendola out for a while, Austin Niklas will be the Falcons’ top backup at inside linebacker.

Out of the poll

Air Force didn’t sneak into the Top 25 of the USA Today Coaches Poll, which was released on Thursday. The Falcons were 10th among teams outside the top 25 receiving votes, which places them as the 35th ranked team in the nation. Calhoun will be a voter in the coaches poll this season.

Two Mountain West teams made the poll. Boise State is ranked seventh and TCU is 15th. Notre Dame, which Air Force plays on Oct. 8, is ranked 18th.