Roy Devyn Marble's hot shooting at the start sparked his teammates. It even helped his defense.
Marble scored 22 of his 26 points in the first half and No. 17 Iowa beat No. 10 Michigan 85-67 on Saturday. Marble even drew the defensive assignment on Nik Stauskas for much of the game, holding the Wolverines' leading scorer to 10 points.
There's an invisible line that a good team must cross to become a national or even conference contender.
Iowa climbed over that mental barrier on Sunday.