NUMBERS TO KNOW

3: That’s how many defensive linemen from No. 2 Clemson made the Associated Press preseason All-america team. Clelin Ferrell and Christian Wilkins were first-team selections, while Dexter Lawrence made the second team. The preseason all-atlantic Coast Conference defensive line is all Clemson players: Ferrell, Wilkins, Lawrence and Austin Bryant.

5: The number of new coaches in the SEC (not including Mississippi’s Matt Luke, who was an interim coach last year but got hired on a permanent basis after the season).

73: No. 1 Alabama has defeated unranked opponents an Fbs-record 73 straight times. Alabama opens Saturday by facing unranked Louisville in Orlando, Florida.

39-11: That was the Big Ten’s record against nonconference opponents last season. The Big Ten’s .780 winning percentage in nonconference games was the best of any league.

.729: Michigan’s all-time winning percentage, which leads all FBS schools. The 14th-ranked Wolverines open at

No. 12 Notre Dame, which ranks fourth in winning percentage despite recently being forced to vacate 21 victories from the 2012 and 2013 seasons. Boise State is second and Ohio State is third.

198: Points scored last season by Florida Atlantic running back Kevin Singletary, a figure that led all FBS players. Singletary and the Owls carry a 10-game winning streak into their opener Saturday at No. 7 Oklahoma.