PITTSBURGH (AP) Mike Krzyzewski keeps wringing his hands about his team's youth. And then Duke and its roster of NBA-bound freshmen get on the floor against a more experienced opponent and the Hall of Fame coach's fears largely vanish.

Having Marvin Bagley III certainly helps.

The Atlantic Coast Conference Player of the Year did whatever he wanted against game but overmatched Iona, pouring in 22 points to go with seven rebounds in his NCAA Tournament debut as the Blue Devils pulled away for an 89-67 victory on Thursday. The 6-foot-11 freshman forward made 10 of 14 shots in 32 minutes - even making his lone 3-point attempt - as Duke rolled into a second-round Midwest Region matchup with seven-seeded Rhode Island on Saturday. The Rams held off Oklahoma in overtime in the opening game of the tournament.