John Minchillo/Associated Press
Tennessee’s first two games of the N.C.A.A. tournament have proven that the team is either the biggest underachiever still alive or the tournament’s worst overachiever. The Volunteers played like the most dangerous No. 2 seed in the first half against Iowa on Sunday, then looked like the most vulnerable No. 2 after halftime.
Thanks to a dominant overtime by Grant Williams, the Southeastern Conference’s two-time player of the year, the Volunteers, who had blown a 25-point first-half lead to No. 10 Iowa, avoided what would have been the most egregious collapse in N.C.A.A. tournament history.