Isaiah Livers had 22 points and freshman Hunter Dickinson scored all 19 of his points after halftime as No. 25 Michigan survived to beat winless in-state opponent Oakland University 81-71 in overtime Sunday in Ann Arbor, Mich.Livers went 5-for-7 from long range while his teammates shot 3-for-20 on their 3-point tries. Franz Wagner had 13 rebounds and six points for the Wolverines (2-0).Jalen Moore led the Golden Grizzlies with 21 points, nine rebounds and six assists. Trey Townsend added 13 points for Oakland (0-4) , which was playing for the fourth time in five days.Dickinson scored six points in overtime, including a layup 11 seconds into the extra period. He added four free throws, and Livers fired in a 3-pointer to give Michigan a nine-point lead. Oakland didn’t score in the extra session until Rashad Williams’ layup with 1:14 left.Oakland put together an 11-2 run early in the second half to take a 44-38 lead. Micah Parrish scored five of those points on a 3-pointer and two free throws.After the Wolverines pulled within two points, Zion Young made a 3 to give the Golden Grizzlies a 54-49 advantage midway through the half.Dickinson converted a three-point play and a layup to provide the Wolverines with a 57-56 lead with eight minutes left.The game remained tight. Dickinson’s dunk with five minutes remaining gave Michigan a 63-61 edge.