SOUTH BEND, Ind. -- Kyren Williams had a 3-yard touchdown run in the second overtime and No. 4 Notre Dame shut down top-ranked Clemson with a couple of sacks to seal a 47-40 victory Saturday night, the Fighting Irish's first victory over a No. 1 in 27 years.

Clemson had won 36 straight games and had not lost to an Atlantic Coast Conference team since 2017. The Fighting Irish (7-0, 6-0), playing in the ACC only because of the pandemic, snapped both streaks and sparked fans to storm the field in a celebration that most definitely did not meet the CDC's social-distancing guidelines.

After Williams gave Norte Dame the lead on the first possession of the second OT, the Irish pushed Clemson back with back-to-back sacks on DJ Uaigalelei by Adetokumbo Ogundeji and Daelin Hayes on the Tigers first two plays.

The big freshman quarterback completed to passes after the second-and-39, but the final one was way short of the line to gain and a couple of laterals didn't help.

The Fighting Irish have won 13 straight games, snapped an 11-game losing streak against top-five teams and beat a No. 1 for the first time since taking down Florida State in 1993 at Notre Dame Stadium, in a meeting, at the time, that was billed as "The Game of the Century."

The Associated Press contributed to this report.