Oklahoma fans troll Alabama with hilarious ESPN College GameDay signs

ESPN College GameDay was back in Norman on Friday night for the Oklahoma Sooners' first-round College Football Playoff rematch with Alabama, and it was clear OU fans already had some practice once before this season with their sign game while trolling the Crimson Tide in just the hour that the show was outside the stadium.

Just like the football team did, OU fans also executed flawlessly back in Week 2 to roast Michigan the last time College GameDay was in town before the Wolverines lost to the Sooners 24-13 in primetime. That experience prepared Sooner Nation for again getting to host College GameDay on an even bigger stage and for a unique eveving show before OU and Bama kick off at 7 p.m. CT Friday night, with the cast making predictions inside Memorial Stadium just before kickoff. OU fans also had plenty of ammo with the Sooners beating Bama in their last two meetings, including 23-21 just over a month ago in Tuscaloosa.

Not even Nick Saban was safe.

Best signs from OU fans at ESPN College GameDay ahead of Alabama rematch

The Sooners sacked Bama QB Ty Simpson four times in their last meeting, by the way.

Sooner Nation knows what's on the line.