Gathering restrictions already implemented by local authorities, "such as the ones established in Philadelphia and State College," will remain in effect.
Yetur Gross-Matos' breakout performance highlighted a dominant week by Nittany Lions in the NFL.
The Nittany Lions' new-look offense will try to build upon last year's success under a new offensive coordinator.
What will Penn State football's backfield look like this fall?
O'Brien joined the Texans in 2014 after spending two seasons as Penn State football's head coach.
Clifford totaled 300 yards and two touchdowns in St. Xavier's 62-37 win this weekend.