The sources said an off-field incident involving Bolden occurred Friday evening. Bolden practiced with the team Saturday and took part in a squad meeting late Saturday afternoon.
Brennan said it remains unclear if the incident will impact his playing status. The sophomore threw for 548 yards, a touchdown and four interceptions in 2011, and started for the first half of the season before losing the job to Matthew McGloin.
Bolden is the second Nittany Lions quarterback to make news in as many days. McGloin was reportedly involved in an "altercation" with wide receiver Curtis Drake after practice on Saturday that resulted in the junior being sent to Mount Nittany Medical Center for treatment for a possible seizure as well as a possible concussion.
Penn State's third-string quarterback is walk-on Shane McGregor. He'd likely replace Bolden and McGloin if recent events hold them out of the January 2 TicketCity Bowl in Dallas. Receiver Bill Belton, who has been behind center in some wildcat formations for Penn State this season, might see action as well. Drake has played in the wildcat packages, too, but following the altercation, his playing status is also unclear.