Behind Winston, No. 24 Michigan State tops No. 18 Iowa 78-70

Michigan State's Malik Hall, right and Iowa's Luka Garza (55) and Michigan State's Thomas Kithier, left, vie for a rebound during the first half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. (AP Photo/Al Goldis)

Michigan State's Cassius Winston smiles after hitting the floor on a scramble for the ball against Iowa during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Iowa's Luka Garza, left, reaches for a rebound over Michigan State's Xavier Tillman during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Michigan State's Rocket Watts, right, drives against Iowa's Ryan Kriener during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Iowa's Luka Garza, center, looks for a shot between Michigan State's Marcus Bingham Jr., left, and Malik Hall (25) during the first half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. (AP Photo/Al Goldis)

Iowa's Luka Garza, left, shoots against Michigan State's Julius Marble (34) during the first half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. (AP Photo/Al Goldis)

Michigan State's Rocket Watts (2) shoots against Iowa's Luka Garza (55) during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Michigan State's Xavier Tillman, left, and Iowa's Luka Garza fight for a rebound during the first half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. (AP Photo/Al Goldis)

Michigan State's Cassius Winston shoots against Iowa during the first half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. (AP Photo/Al Goldis)

Michigan State's Xavier Tillman, right, and Iowa's Ryan Kriener (15) vie for a rebound during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Michigan State's Kyle Ahrens, left, Cassius Winston, center, and Malik Hall celebrate during the second half of an NCAA college basketball game against Iowa, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)

Michigan State's Aaron Henry, top left, goes up for a shot against Iowa's Ryan Kriener (15) during the second half of an NCAA college basketball game, Tuesday, Feb. 25, 2020, in East Lansing, Mich. Michigan State won 78-70. (AP Photo/Al Goldis)