"I told our team when we were up four, up six, whatever it was, we were going to win this game and it's going to be one of the greatest wins in the history of Michigan State," Izzo said.
Lucious' shot capped a wild finish to a game that the Spartans appeared to have in hand. With 12 minutes to go, they were up by 16.
The drama started when Summers went out with his fourth foul with 6:19 left and MSU holding a 74-64 lead. A 3-pointer by Eric Hayes and a layup by Adrian Bowie pulled Maryland within 78-71 with 3:59 left. Maryland missed on its next possession, and the Spartans worked time off the clock before Lucious scored for an 80-71 lead with 2:05 to go.
Vasquez scored quickly on the other end and sank the foul shot to make it 80-74.
Then, Maryland's press paid off. Vasquez, the ACC player of the year, stole an inbounds pass and Sean Mosley made a layup to make it 80-76. The Terrapins' Cliff Tucker stole the ball on the next possession and Vasquez hit a 3 from the left corner to cut it to 80-79 with 1:19 left.
Tucker stole the ball again and Vasquez made a runner over Delvon Roe to give Maryland an 81-80 lead with 31 seconds left, its first since the opening minutes.
Draymond Green scored with 20 seconds remaining to put the Spartans up by one. But Vasquez scored again, setting up the thrilling final sequence.
Lucas began hopping on one leg and keeping his left foot off the ground after making a runner and landing awkwardly on his left leg near the baseline with 2:28 remaining in the first half. As play continued at the other end, he hopped down court on his right leg while wincing in pain. He tried to defend the ball before officials gave him an injury timeout.
The junior then hopped to his bench. After a trainer looked at his lower left leg for a moment, Lucas hobbled into a tunnel that leads to the locker room.
"I just came down the wrong way," he said.
Michigan State led by nine when Lucas left the game. He remained out at the start of the second half, and wasn't even on the bench until 12 1/2 minutes remained. The Spartans' lead had grown to 15 by then, thanks to Summers' shooting.
Allen, a 3-point specialist, did not start because of a foot injury. He entered midway through the first half, moved stiffly for a couple of minutes, then left the game and remained on the bench into the second half.