The win moves the No. 12 Spartans to 20-4 overall and gives Michigan State and head coach Tom Izzo the program's eighth 20-win season in the last nine years.
The key to this one was limiting the looks that Purdue saw. Despite shooting a respectable 47.7 percent overall, the Boilermakers took 11 fewer shots than the Spartans. Michigan State's quick hands were a big reason why. Spartan steals accounted for 13 of Purdue's 14 turnovers and every player in Michigan State's starting lineup registered at least one steal, led by three each from Gary Harris and Derrick Nix.
Purdue was paced by its sibling backcourt on Saturday. Terone Johnson had 20 points and his brother Ronnie Johnson had 15 points and eight assists.
With the loss, Purdue drops to 12-12 overall and 5-6 in the Big Ten. The Spartans are now 9-2 in the conference and, for now, are alone in first place.