WEST LAFAYETTE, Ind. (AP) _ Guard Sam Vincent scored 39 points Thursday night, including Michigan State's final seven points of regulation play and eight of the Spartans' first 11 points in overtime in an 81-72 Big Ten Conference basketball victory over Purdue.

The victory lifted No.17-ranked Michigan State to sole possession of first place in the conference at 3-0 and raised its overall record to 12-1. Purdue dropped to 1-2 and 10-3.

Purdue led 63-57 with a minute left in the second half of regulation, but the Boilermakers managed only a single free throw by Robert Littlejohn the rest of the way. Vincent's seven-point streak, capped by the tying basket with 12 seconds remaining, sent the game into overtime at 64-64.

Ken Johnson scored on a three-point play and Vincent added a basket and six straight free throws as Michigan State blew out to a 5-64 lead and cruised to victory. Scott Skiles finished with 15 points and Johnson added 14 for the Spartans.

Vincent had only six points in the first half, and Purdue held a narrow 27-25 lead at the intermission on a basket by Everette Stephens at the halftime buzzer. Purdue's biggest lead was at eight points, 38-30, before a 9-2 burst brought Michigan State back into the game.

Steve Reid led Purdue with 26 points, while James Bullock added 11 and Mack Gadis finished with 10.