Michigan State scored the final 10 points of the game to rally past Michigan 65-60 in the Big Ten Championship game in Chicago.
Matt McQuaid scored a career-high 27 points to lead top-seeded MSU.
Ignas Brazdeikis had 19 points for U-of-M.
Michigan State will be a two seed in the NCAA East Region, while Michigan is a two seed in the West.
The Spartans open up Thursday afternoon against Bradley in Des Moines, Iowa.
The Wolverines will go up against Montana that same night, also in Des Moines.
Duke, Virginia, North Carolina and Gonzaga are the number-one seeds for the NCAA Tournament. The Blue Devils were named the top overall seed in the field of 68.