Braylon Mullins sank a desperation three-pointer with 0.4 seconds left to give Connecticut an astonishing 73-72 victory over top-seeded Duke on Sunday, earning the Huskies a spot in the Final Four after they rallied from a 19-point first-half deficit.

The Blue Devils led by three before UConn’s Silas Demary Jr. made one of two free throws with 10 seconds left. With Duke playing keep-away to prevent the Huskies from fouling, Cayden Boozer’s pass near midcourt was deflected, and after UConn came up with the ball, Demary made a shot from well behind the three-point line.

It’s the second straight season to end in a huge collapse for Duke, which was the top overall seed in this year’s tournament. The Blue Devils led by six with 1:14 remaining before falling to Houston in last year’s national semifinals.

UConn missed 18 of its first 19 attempts from three-point range and finished five for 23. The fifth will be remembered in Connecticut for generations.

llinois will face UConn and Michigan will take on Arizona next Saturday, with the winners squaring off two nights later for the national title.

The Arizona-Michigan game is a matchup of top seeds. UConn is seeded second and will play No. 3 seed Illinois.

Arizona is the early favorite to take the title next Monday night in Indianapolis, listed at 19-10 odds by BetMGM Sportsbook, followed closely by the Wolverines — coming off a 95-62 drubbing of Tennessee on Sunday — at 2-1.

Michigan is a 1½-point favorite in its semifinal.