The biggest development of Week 9 came off the field, shaking up ESPN's power rankings.
Clemson star quarterback Trevor Lawrence tested positive for COVID-19, and coach Dabo Swinney said following the Tigers' 32-28 comeback win over Boston College on Saturday that Lawrence will not be back in time for the trip to Notre Dame this weekend.
Freshman quarterback D.J. Uiagalelei passed for 342 yards and played well in filling in for Lawrence, but the Tigers simply aren't the same team without their Heisman Trophy front-runner. Clemson drops two spots this week, and Notre Dame moves up a spot.