ACC Upset Watch: Can Clemson ace its Florida State test?

Here is our weekly look at the games that could give favored teams a scare. Remember, these are not predictions. Those come out Thursday.

Duke (6-2, 3-1) at North Carolina (7-1, 4-0), noon, ESPN2. Line: North Carolina by 8. The Tar Heels look like the more complete team on paper, but they have not exactly put together the perfect game just yet. And you can bet Duke will come into this game with a little extra motivation. Not only do the Blue Devils have something to prove after what happened on the final play last week against Miami, this could also be considered a revenge game after North Carolina beat them a year ago to effectively end their chances at winning the Coastal. Duke is quite comfortable on the road, with victories in 12 of its past 13 road games, including six straight. The Blue Devils' improved defense will keep them in the game. If the offense plays more consistently and converts more opportunities in the red zone, Duke could have a shot at the upset.

No. 5 Notre Dame (7-1) at Pitt (6-2), noon, ABC. Line: Notre Dame by 8.5. Notre Dame follows up a tough down-to-the-wire win over Temple with another tough game against gritty Pitt. It won't be easy for the Irish. The last six meetings between these two teams have been decided by an average of 4.5 points. Two went into overtime. Remember, Pitt is 5-2 in games decided by single digits this year. The last time these two teams played, the Panthers won at Heinz Field. While that might not have anything to do with the meeting on Saturday, Pitt has a tendency to get up for Notre Dame. And what we saw last time out against North Carolina was this team doesn't have any quit, either. Watch for Pitt to bump up the pressure on DeShone Kizer with a group that already has 22 sacks this year. Nate Peterman must make plays in the passing game for Pitt to have a shot.

No. 16 Florida State (7-1, 5-1) at No. 1 Clemson (8-0, 5-0), 3:30 p.m., ABC. Line: Clemson by 12.5. Does putting Clemson on this list mean the Tigers are going to lose? No. It means they are going to face their toughest remaining test in the regular season, against a team that has had their number the past three seasons. Since 2012, Clemson is 0-3 against Florida State and 25-1 against the rest of the ACC. Just because the Seminoles have struggled in a few games does not make this any less of a challenge. Especially with a player named Dalvin Cook on their sideline. Clemson went into the 2013 meeting the higher-ranked team and lost. By all accounts, the Tigers are a more mature team than they were back then. But this game is the ultimate measuring stick. If Clemson wins as expected, the Tigers will clinch a spot in the ACC title game and become an overwhelming favorite to make the College Football Playoff. If Clemson loses, it will be another season filled with "what ifs."