WASHINGTON — Matt McQuaid could not believe LSU was giving Michigan State freshmen Aaron Henry and Gabe Brown so much room at the 3-point line.

“They were like 3 or 4 feet off Gabe on that one 3,” McQuaid said. “I was like, ‘Dang, do they know he can shoot?'”

Henry scored a career-best 20 points and Brown had a career-high 15 as the second-seeded Spartans beat third-seeded LSU 80-63 on Friday night to move on to the NCAA tournament’s East Region final. Coach Tom Izzo’s upperclassman-heavy team is one victory away from its first Final Four appearance since 2015 – and the freshmen led the way.

“They were huge tonight in a lot of ways,” senior point guard Cassius Winston said of Henry and Brown. “They won the game. They were confident, they trusted in their abilities, they took their shots that they were supposed to and they just stepped up in a big way.

Michigan State faces the winner of the matchup between overall top seed Duke and No. 4 seed Virginia Tech in the regional final Sunday. This is Michigan State’s fifth Elite Eight appearance in the last 11 years and 10th under Izzo.

Michigan State took it to LSU on the glass, outrebounding the Tigers 34-20. At halftime, Michigan State had as many offensive rebounds as LSU had total rebounds, at times making it look like 5-on-4 when the ball came off the rim.

“It was very frustrating,” LSU big man Naz Reid said. “They wanted it more, and they got it.”

The Spartans took advantage of an LSU defense that left them uncontested 3-point shots. Michigan State had five 3s in the first 10 minutes, and LSU never adjusted defensively.

Tremont Waters scored 10 points during a 13-0 LSU run spanning the end of the first half into the second to cut the deficit to four. Then Michigan State blew the game open again with 3-pointers. The Spartans hit four of their first five 3-point attempts out of halftime to pull away.

“That was kind of a shot in the foot because we knew they were capable of hitting those 3s,” Waters said.

Henry did his best Draymond Green impression, as the do-it-all 6-foot-6 forward was all over the offensive end of the floor. He had eight rebounds and six assists and was 9 of 14 from the floor.

“It was one of those nights where I just felt like the basket was huge,” Henry said. “And I’m glad it was that way tonight.”

Brown came in averaging 2 points a game but scored more points than his past 11 games combined.

“Gabe Brown – he might’ve had a career, and by career I mean the whole season,” Izzo said.

Winston went toe-to-toe with Waters and finished with 17 points as one of four Michigan State players in double figures.

WHAT NOW, LSU?

The loss plunges LSU into uncertainty given the corruption scandal that left Coach Will Wade suspended indefinitely for comments he reportedly made about his recruiting efforts on a phone call that was wiretapped as part of an FBI investigation.

It’s unclear what ramifications the program will face and whether Wade will coach LSU again. Freshman Javonte Smart, who was a surprise starter against Michigan State, is the player Wade was recorded as saying he’d “take care of.” Meanwhile, forward Naz Reid is a candidate to enter the NBA draft.

WARD INJURED

Michigan State big man Nick Ward appeared to reinjure his left hand in the second half and left the game. Ward was playing with a brace on the hand after breaking it in February and missing five games.

WINSTON MAKES HISTORY

With his fifth assist, Winston set a Michigan State single-season record. Mateen Cleaves set the previous record of 274 in 1998-99, the year before leading the school to a national title.