Kent State opens the 2017 football season against defending national champion Clemson, and will be without its head coach. 

The school announced Sunday night that coach Paul Haynes will take a medical leave of absence. Details of the situation weren't announced, but Haynes is expected to be out for 2-3 weeks. Offensive coordinator and quarterbacks coach Don Treadwell will serve as the interim head coach while Haynes is out. 

"We fully support head coach Paul Haynes during his leave," athletics director Joel Nielsen said in a statement. "Our thoughts and prayers are with the Haynes family as we look forward to his return to Kent State."

Treadwell is a former Miami (Ohio) head coach who served as Mark Dantonio's interim in 2010 for Michigan State and beat Northern Colorado and Wisconsin.

Haynes is 12-35 in his four seasons as the head coach of the Golden Flashes. After visiting Clemson in the season-opener, Kent State hosts Howard before traveling to Marshall and Louisville during the first four weeks of the season.