Ohio State, Clemson and two clutch, season-defining drives

Two drives Saturday might end up defining this season.

That sounds a bit drastic, and there will surely be ample twists and turns before we get to selection day for the College Football Playoff. But the fifth Saturday of the season had two playoff favorites on the ropes -- one 94 yards from a win, the other 96. Both offenses had struggled for much of the day. Both needed some huge plays along the way. And yet both made it happen.

In Death Valley, Clemson's worst nightmares were realized, Trevor Lawrence went down with a concussion, and Chase Brice was forced into action. The freshman QB -- the guy no one expected to see playing significant reps just a week ago -- engineered a drive for the…