EVANSTON, Ill. (AP) _ Will Dudley scored 14 points and teammate Ken Johnson became the Big Ten's all-time leading shotblocker as Ohio State beat Northwestern 69-57 Saturday night.

Five Buckeyes scored in double-figures for Ohio State (19-9, 10-5 Big Ten), which has won six of seven.

Johnson blocked six shots and scored 11, while Brent Darby scored 13 for the Buckeyes.

With 12:32 left in the first half, Tavaras Hardy of Northwestern (10-18, 2-13) drove the lane and put up a shot, but Johnson swatted it away, giving the OSU center his 429th career block, tops in league history. The rejection put Johnson past Penn State's Calvin Booth and placed Johnson alone at No. 5 in the NCAA career blocks.

Ohio State was up 31-28 at the break but turned over the ball on five of its first seven possessions of second half. Northwestern kept it close as Johnson got into foul trouble and sat on the bench.

Collier Drayton had a chance to tie the game at 33 with a bucket and foul with 14 minutes left, but missed the free throw. After sitting for four minutes, Johnson returned and immediately made an impact, blocking another shot at one end and making a layup on the other. Boban Savovic then drilled a pair of 3-pointers and the Buckeyes went on a 13-2 run to lead 45-34.

Johnson sat down again after his fourth foul with 5:22 left, and Hardy hit a three to conclude a 12-4 Wildcat run and bring the Wildcats within 49-46, but that was as close as they got.

Hardy scored a game-high 17 points.