UCF knocked off No. 2 BYU 39-31 in double overtime Saturday night for the Knights’ first win over a top-five team, CBS Sports and ESPN reported. Fans stormed the field after the final whistle, ESPN said. The result ranks among the season’s biggest college football upsets.

In the second overtime, UCF made a 26-yard field goal for a 34-31 lead. Officials then called BYU’s Kendal Wall for roughing the kicker, giving UCF first-and-goal at the 5. The Knights scored two plays later and added a two-point conversion to make it 39-31. BYU failed to score on its possession, and the game ended, ESPN reported.

BYU coach Kalani Sitake disputed the roughing call and said he did not get an explanation. "From what I saw, I don’t think that’s a personal foul roughing the kicker," he said. He refused to call the loss a letdown a week after BYU’s emotional win over Notre Dame that lifted the Cougars to No. 2. "They bested us," Sitake said, per ESPN. "We just made a lot of mistakes. These mistakes shouldn’t be happening midseason."

CBS Sports framed the night as the program’s first top-five win. BYU’s College Football Playoff hopes remain alive, ESPN said, but the margin for error is now much thinner after an uncharacteristic pile of personal fouls on the road.

UCF improved to 5-3 and 2-2 in the Big 12. BYU fell to 8-1 and 5-1 in conference play. The Knights forced the first overtime after a late field goal that tied the game in regulation, ESPN reported.

What we know: Final score UCF 39, BYU 31 in double overtime. A roughing call set up the Knights’ winning score.
What we don't: Whether the call will draw a formal league review.