LOUISVILLE, Ky. (AP) Jordan Nwora had 22 points and 12 rebounds, and top-ranked Louisville held No. 4 Michigan to a season-low 26% shooting mark for a 58-43 victory Tuesday night in the Big Ten/ACC Challenge in its first game since returning to No. 1.

The Cardinals (8-0) shot just 37% but their defense stifled Michigan (7-1) much of the night as they earned a signature victory one day after claiming the top spot in the AP Top 25 for the first time in six years. Though second-year coach Chris Mack has downplayed rankings, the win was significant for a program he has guided back into the national championship discussion following a sex scandal and the school's involvement in a federal corruption investigation of college basketball.

The Cardinals also kept the Wolverines and first-year coach Juwan Howard from adding another top-10 upset to the ones that helped them enter the Top 25 and match Kansas (1989) for the biggest jump from being unranked in the 70-year history of the poll.

Steven Enoch had 10 points and 10 rebounds, and Dwayne Sutton had 11 boards as Louisville topped Michigan 48-41 in that category.

Jon Teske had 18 points and 10 rebounds for the Wolverines, who had sought their first victory over a No. 1 team since beating Duke 81-73 at home on Dec. 13, 1997.

UP NEXT

Louisville resumes ACC play against Pitt at home on Friday.