Updated

San Diego State is staying in the Mountain West and backing out on the Big East — just like Boise State did last month.

San Diego State President Elliot Hirshman says the school is pleased to be continuing as a full member of the Mountain West Conference.

San Diego State, a founding member, had committed to join the Big East for football only, with Boise State, starting next season.

But recent defections from the Big East caused Boise State to reconsider and strike a deal to stay in the Mountain West. Without a western partner, San Diego State retreated, too.