Thanks to Tremont Waters and LSU for an injection of "This. Is. March." drama into Saturday's second-round NCAA Tournament festivities. Otherwise it was chalk, chalk, chalk.
Will it be more of the same Sunday, with No. 1 seeds North Carolina, Duke and Virginia in action?
Here is a guide to the best games of Day 4:
No. 2 Tennessee vs. No. 10 Iowa, 12:10 p.m. ET
Tennessee brushed past No. 15 seed Colgate in the first round behind 19 points from Admiral Schofield and 16 from Jordan Bone; now the Volunteers step up in competition. Iowa used a 48-point second half to dispatch Cincinnati, shooting 54.7 from the field and 50 percent from 3 for the game.
No. 1 Duke vs. No. 9 UCF, 5:15 p.m. ET
Everyone wants to see rim-rattling Duke phenom Zion Williamson dunk on UCF's 7-foot-6 center Tacko Fall -- or try to. It's a matchup of college basketball's most electric dunker against one of its elite shot-blockers. But let's save a moment for Duke's R.J. Barrett, who put up 26 points, 14 rebounds and three assists in his tournament debut.
No. 3 Texas Tech vs. No. 6 Buffalo, 6:10 p.m. ET
This projects as the closest game of the day. Buffalo plays fast and scores in bunches -- the Bulls hung 91 on a weary Arizona State team in the first round. Get to know Texas Tech super-prospect Jarrett Culver, who put up 29-8-7 on Friday and should thrive in a shootout.
No. 1 Virginia vs. No. 9 Oklahoma, 7:45 p.m. ET
Which Virginia team shows up? The shaky squad that trailed Gardner-Webb by six at halftime in the first round and produced flashbacks to last year's UMBC calamity? Or the finely tuned machine that outscored the underdogs 41-20 in the second half while showcasing the NBA-level abilities of De'Andre Hunter and Ty Jerome?
No. 12 Oregon vs. No. 13 UC Irvine, 9:40 p.m. ET
The last game of the second round definitely will produce a double-digit seed in the Sweet 16, after Saturday's shutout and if none of Sunday's other hopefuls (No. 10 Iowa, No. 12 Liberty, No. 11 Ohio State) comes through. Oregon is a major-conference tournament winner masquerading as a Cinderella; UC Irvine, which got 19 points apiece from guards Max Hazzard and Evan Leonard in bumping Kansas State, is the real deal.
*Lines via The Action Network