Michigan State blew a 15-point halftime lead to Purdue on Friday night, bringing the Spartans to a 2-4 conference record.

Trevion Williams was the x-factor for Purdue, as he scored 22 of his 26 points after halftime. He also hit the game-winner with 4.5 seconds remaining to give the Boilermakers a 55-54 victory.

“(That’s) one of the more disappointing losses we’ve had,” Spartans coach Tom Izzo told reporters after the game.

However, Izzo is more concerned about his team’s upcoming schedule than he is about the collapse in this game.

“I’m not worried about the mental makeup (of this team),” Izzo said. “I’m worried about the schedule. It doesn’t get any easier.”

Three of Michigan State’s next four contests come against ranked opponents — No. 5 Iowa, No. 12 Illinois and No. 15 Rutgers. The fourth is against an Indiana team that has competed hard this season.

If there’s a bright side, it’s that the Spartans defeated Rutgers 68-45 earlier this week. They should enter that game with plenty of confidence.

Here’s a few more comments from Izzo after the loss to Purdue: