The San Francisco 49ers and Seattle Seahawks have one of the NFL's best rivalries with their head coaches having history that dates back to their time at Stanford and USC.

Jim Harbaugh and Pete Carroll had multiple run-ins in college, though they've been fairly civil toward each other in the NFL.

According to the Seattle Times, Carroll said at an event for Seahawks fans that Harbaugh is “a great coach and we love beating him.”