In a season marked by parity, No. 2 Michigan State and No. 3 Villanova turned in big road performances as reminders of their title potential in March.
The Spartans (26-3) completed one of the biggest comebacks in NCAA history to win at Northwestern. And the Wildcats (24-3) beat No. 4 Xavier in the week's biggest matchup on the AP Top 25 schedule ahead of Monday's latest poll release.
Michigan State rallied from 27 down to win 65-60 and earn a 10th straight win.
"We needed the win, don't get me wrong, but they deserved the win," Spartans coach Tom Izzo said. "They outplayed us for two-thirds of that game in every fashion. ... For us, you've got to win...