Boise State starting center Cory Yriartes career has ended before his senior season because of another knee injury.
Wide receiver Geraldo Boldewijn will miss the first four games of his junior season because of another NCAA violation tied to his host family.
Boise State announced the double dose of bad news Friday, on the eve of the teams first fall practice.
Yriarte started eight games last season and was awarded a sixth season of eligibility to compete in 2012. He missed two full seasons because he tore an anterior cruciate ligament twice.
However, he recently sustained another knee injury in summer conditioning one that will prevent him from using that extra year.
Junior Matt Paradis, a former walk-on from Council, started one game last season and likely will open camp as the starting center. Senior left guard Joe Kellogg also has experience at the position.
Boldewijn, meanwhile, was suspended by the NCAA for accepting financial assistance from his host family when booking his airplane ticket to go home to Amsterdam in December, after the Broncos bowl game. Boldewijn lived with the family while attending Capital High. He has repaid the impermissible benefit to the family.
The violation was discovered during an internal audit of the football teams bowl expenses.
Boldewijn also was suspended for the first four games last year for use of a car and drivers insurance coverage provided by the host family.
Teammate Ricky Tjong-A-Tjoe, also from Amsterdam, was suspended for six games last year for benefits tied to his host family. He attended Boise High.
Boldewijn made 19 catches for 266 yards and two touchdowns last season and is expected to contribute to the receiver rotation again this year. The 6-foot-4 deep threat will miss games against Michigan State, Miami (Ohio), BYU and New Mexico. He can practice during his suspension.
The NCAA violation is not expected to affect Boise States three-year probation, which began in September, athletics spokesman Max Corbet said.
Chadd Cripe: 377-6398, Twitter: @IDS_BroncoBeat