In our Giant Killers tour of the NCAA tournament regions -- which previously included the East and West regions -- we finally hit a bracket bubbling with upset potential. If the Goliaths fall right, we could even see a 12-seed and 13-seed square off against each other here in the second round. Now, that would short-circuit our spreadsheets.
4hPHOTOGRAPHY BY SERENA DE SANCTIS for ESPN
17hMike Vorkunov for REDEF
7hSam Khan Jr. and Greg Ostendorf
9hYuan Fang, ESPN.com