'Zags bench players Sean Mallon (32) and Erroll Knight couldn't believe their eyes. AP

SI.com caught up with Grant Wahl at Key Arena in Seattle, minutes after No. 10 seed Nevada shocked No. 2 seed Gonzaga 91-72 in the second round of the NCAA tournament.

SI.com: How did the Zags go down? Wasn't this supposed to be the most experienced, talented team they'd ever taken to the tournament?

Grant Wahl: They got into foul trouble early on. And they didn't adjust to how the refs were calling the game. When Ronny Turiaf picked up his first two fouls right away -- and then his third midway through the first half -- that really, really hurt them.

But give Nevada credit for a great game plan on how to defend Gonzaga. They got the Zags in foul trouble early, and that was the game. And they really shut down Blake Stepp, who wasn't shooting well, but he also wasn't getting any of those lob passes to guys like Turiaf and Cory Violette. Coming into the game, the 'Zags thought they were going to be able to go over the top on the Wolf Pack, and it didn't happen.

SI.com: Was the fact that Gonzaga -- specifically Stepp -- was ice-cold from long-distance what really killed them? They shot just 3-for-22 (13.6 percent) from behind the arc.

Wahl: The cold shooting was a huge problem. Remember, that's what happened to Gonzaga when they lost to Wyoming in the first round two years ago. You have to be able to shoot well in the tournament. If you have an off-game, you're dead -- and Gonzaga never got going.

Stepp is conditioned to keep shooting, and he did, but they just weren't falling. He was 1-for-12 from 3, and he panicked a little bit with a few minutes left in the game, started trying to lean in on his 3s. He looked a little tight today.

SI.com: And while the Zags were cold, the Wolf Pack kept hitting big shots, didn't they?

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Wahl: This Nevada team is a lot more than Kirk Snyder. Todd Okeson, the point guard, was solid (19 points, three 3s), and Kevinn Pinkney was just a stud. The play of the game was the in-bounds alley-oop to Pinkney, which gave the Wolf Pack a 14-point lead -- and he got fouled. It was all over from that point. That was the dunk that broke Gonzaga's back.

SI.com: This has to go down as the shocker of the tournament, right?

Wahl: This has to be it. I mean, nobody even thought that Nevada would beat Michigan State.

SI.com: Was this a fluke upset, or does Nevada have what it takes to keep rolling in the tournament?

Wahl: It depends on whom they draw in the next game. It's probably going to be Georgia Tech, and I don't see any reason why Nevada can't play with Georgia Tech. I thought Gonzaga was one of the best teams in the country, and Nevada beat them.

Sports Illustrated senior writer Grant Wahl covers college basketball for the magazine and SI.com.