LOS ANGELES — Last Sunday, Terance Mann woke up with no expectation of playing that day. His Florida State team was set to facing Xavier, the top seed in the West Region of the N.C.A.A. tournament, and the Seminoles’s chances looked slim without Mann, who had a groin injury.

His team’s most indispensable player, Mann ended up coming off the bench to contribute 24 minutes in the huge upset.

His recovery process appeared complete Thursday as Mann soared for four dunks among his 18 points while pacing the Seminoles (23-11) to their third consecutive upset, this one 75-60. The latest victim was No. 4 Gonzaga (32-5), whose 16-game victory streak had come by way of a dominant 13.5-point average margin of victory.

Next up for ninth-seeded Florida State: No. 3 Michigan, with a trip to the Final Four on the line.

A quarter-century has passed since Florida State’s last game in the round of 8. But with a large, athletic rotation that includes two seven-footers and a three-pronged attack, the term “upset” may no longer apply.