Clemson remained at No. 2 in the second College Football Playoff rankings. Louisville moved up a spot to No. 6. What does that mean for both teams' hopes of cracking the final field of four? Glad you asked.
Record: 9-0 (6-0 ACC)
Rank: No. 2
Biggest obstacle: The Tigers close with games against three teams that currently have winning records, so they can't exactly cruise to the ACC title game, where the opponent would be a fourth team with a winning record. But the biggest remaining hurdle probably comes Saturday against Pitt, which has lost two straight but remains dangerous offensively.