ANN ARBOR, Mich. (AP) Hunter Dickinson gave Luka Garza fits around the basket, and Franz Wagner scored 21 points to lead No. 3 Michigan to a 79-57 victory over No. 9 Iowa on Thursday night.

The Wolverines (17-1, 12-1) passed yet another test against a highly ranked opponent, and they look increasingly alone atop the Big Ten, where every other team has at least four conference losses. Dickinson more than held his own against Garza in a much-anticipated matchup of two standout big men who have known each other for years.

Garza led the Hawkeyes (17-7, 11-6) with 16 points, but he shot 6 of 19 from the field. The 7-foot-1 Dickinson, who like Garza went to high school in the Washington area, showed early on he could defend the Iowa star without help inside. That helped Michigan become the first team to hold the Hawkeyes under 65 points all season.