EAST LANSING, Mich. -

Gary Harris couldn't beg his way onto the court at the end of the first half. His coach couldn't stop begging him to shoot in the second half.

Harris, Michigan State's star sophomore guard, scored 20 of his game-high 24 points after halftime to lead the No. 3 Spartans to their second victory over the Indiana Hoosiers this month, a 71-66 triumph Tuesday night at Breslin Center.

Harris sat out the final 7:55 of the first half after picking up his second foul, then found his stroke to keep the Spartans undefeated in the Big Ten.

"It kind of hurt me to be out with the foul trouble I had in the first half," said Harris, who also sparked the Spartans' defense with five steals. "I was begging Coach (Tom Izzo) to put me back in. He told me to be patient, and I just wanted to come out in the second half and be aggressive, try to help my team and impact the game any way I could."

Harris, a Fishers, Ind. native, continued to haunt the Hoosiers, who lost a fierce recruiting battle for his services. He's averaging 22.5 points against them in four games.

"I spent half my night yelling at him. He's just got to take over games," Izzo said. "He's that good, to be blunt and honest about it. He hid back a little bit (in the first half) and we didn't do a very good job of getting him the ball. What an incredible performance again by him. He took 13 shots, which is not a lot, but he's probably the most efficient player in college basketball."

Junior forward Branden Dawson contributed 13 points and nine rebounds for Michigan State (18-1, 7-0 Big Ten), which won at Indiana 73-56 on Jan. 4. The Spartans face rival Michigan, the only other undefeated team in the conference, Saturday night at Breslin.

Sophomore guard Yogi Ferrell led Indiana (12-7, 2-4), which has lost 18 of its last 19 at Michigan State, with 19 points and freshman center Noah Vonleh added 13 points and 13 rebounds. Indiana's only win at Breslin during the 19-game stretch was a 72-68 victory last season.

The Hoosiers, who were upset by Northwestern on Saturday, kept it close throughout.

"I thought Indiana outplayed us," Izzo said.

Hoosiers coach Tom Crean lamented his team's inability to finish at the rim. They missed 11 layups in the second half alone.

"I think we really did a good job the last couple of days of establishing some togetherness," he said. "The bottom line is everybody who went into the game impacted the game. The crux of the game was we missed some of the shots we made earlier in the game."

Harris scored 14 points, including two 3-pointers and a pair of three-point plays, during the first 10 minutes of the second half to tie it at 46-all.

"He's improving, he's very tough and he shoots the ball at a high rate," Crean said of Harris. "He's going to get better and better and his defense is also taking tremendous strides."

Michigan State soon went on a 16-4 run to take a 62-52 lead. Dawson and guard Denzel Valentine made back-to-back three-point plays to give the Spartans a 52-50 edge with 9:16 remaining. Valentine added a jumper and Harris supplied a 3-pointer later in the outburst.

Hoosiers guard Stanford Robinson scored two baskets in the final minute to put his team within three but they couldn't get any closer.

Neither team led by more than five points in the first half, and Indiana emerged with a 28-27 halftime lead despite nine turnovers.

Forward Noah Vonleh had nine points and six rebounds before halftime. Harris sat out the final 7:55of the half after picking up his second foul.

NOTES: Spartans C Adreian Payne missed his fourth consecutive game due to plantar fasciitis in his right foot. ... Indiana senior F Will Sheehey, who had started every game this season, sat out with a left ankle sprain. ... Michigan State PG Keith Appling has four 20-point, seven-assist games this season, as many as the rest of the Big Ten combined. ... The Spartans held their previous 10 opponents to an average of 60.1 points on 36.4 percent shooting. ... Indiana coach Tom Crean, Michigan State's former associate head coach under Tom Izzo, is now 3-9 record against his former boss. Crean is one of five former Izzo assistants with a current Division I head coaching job. ... The Hoosiers entered the game with nine victories over Top 10 teams since 2011-12, trailing only Kansas (10) and Ohio State (10). ... The Spartans, who have been ranked in the top five all season, have 13 double-digit victories.