ANN ARBOR, Mich. (AP) _ Roy Tarpley scored 18 points and Gary Grant chipped in 16 as No. 2 Michigan took control early in the second half and defeated Western Michigan 74-54 Saturday in a nonconference basketball game.

Grant was the key factor in a 22-6 second-half run that broke open a 2- point game with 15:10 remaining. The sophomore guard had 12 points during the eight-minute span which ended with the Wolverines ahead 58-40.

Grant played only four minutes in the first half as Michigan Coach Bill Frieder put his starter on the bench after he missed an attempt at an acrobatic reverse dunk.

Unlike Michigan's last five opponents, the Broncos managed to keep things close in the first half. The teams were tied at 16 with 9:39 remaining before the Wolverines pulled ahead 32-26 at the break.

Western Michigan tried to maintain a slow pace and the Wolverines, playing their sixth game in 12 days, appeared distracted at times. Michigan shot only 42 percent in the first and finished with 53 percent from the field.

The Wolverines' balanced attack received double-figure contributions from Antoine Joubert who had 11 points, and forwards Richard Rellford and Glen Rice who finished with 10 apiece.

Western Michigan was led by Booker James and Tony Baumgardt who each scored 10 points.

The Wolverines moved to 9-0 for the season. The Broncos are 5-4.