The Syracuse freshman guard decided to shoot.
It was the right decision.
Ennis made the 35-footer at the buzzer and No. 1 Syracuse remained unbeaten with a 58-56 victory over No. 25 Pitt on Wednesday night.
"I saw someone ran over to Trevor and I just had to beat one guy," Ennis said. "I knew they weren't going to let Trevor get it. I just had to get some space. I knew I could get open for a second."
Syracuse (24-0, 11-0 ACC) and Wichita State are the lone undefeated teams in Division I.
Talib Zanna, who led Pitt (20-5, 8-4) with 16 points and 14 rebounds, hit two free throws after being fouled on a layup attempt to give the Panthers a 56-55 lead before Ennis' winner.
Pitt coach Jamie Dixon called a timeout after the free throws to set his defense. That also allowed Syracuse to draw up a play designed for its fearless freshman.
"We guarded it about as well as you could guard it," Dixon said. "He made about a 40-footer. We did what we were supposed to do. If we had to do it again. ... We did the right things.
"They were going to get a shot off. He made it, and he made a tough one. We knew he'd have the ball and would be the guy. We had two guys on him. He hit the shot. Our guys defended, and he hit a shot."
It was Pitt's first loss at home to a top-five team in the 12-year history of the Petersen Events Center. The Panthers had been 9-0 against top-five teams and 13-1 against teams ranked in the top 10.
"They hit a lucky shot," Zanna said. "We can't do anything about it, just move on."
C.J. Fair led Syracuse with 14 points.
Pitt had a 54-48 lead with less than 2 minutes remaining, but Fair made a 3-pointer with 1:40 to go. He then hit a jumper to make it 54-53 with 51 seconds left. After Pitt missed on the other end, Ennis made two free throws with 10 seconds left to give the Orange the lead.
"C.J. hadn't hit a 3 all game. He hadn't hit the rim, and he makes a 3 and then he hits a pretty tough pull-up to give us a chance," Syracuse coach Jim Boeheim said. "Those were big plays and you have to be a special player to make those plays."
Pitt led 27-24 at halftime and built its lead to nine in the early stages of the second half when Lamar Patterson made a 3-pointer to make it 37-28 with 15 minutes remaining.
Syracuse stormed back with a 17-8 run and tied it on Trevor Cooney's 3-pointer with 6:53 to go, but Pitt regained control after Zanna converted a three-point play and freshman Jamel Artis sank two free throws for a 50-45 lead.
But it was all Syracuse after that. Pitt's only points in the final 1:59 came from Zanna's two free throws, and the Panthers were outscored 10-3 in the final 1:59.
Pitt had injury issues of its own. Senior forward and leading scorer Lamar Patterson had the thumb on his right hand wrapped for a second consecutive game. After going 1 for 9 in his previous outing against Virginia Tech, Patterson scored 13 points.
Mike Krzyzewski says he has good reason to be excited for next season thanks to a combination of Duke's incoming freshmen and a core of experienced upperclassmen.
Georgia guard Juwan Parker has been awarded a medical redshirt, leaving him with two years of eligibility, after missing the 2015-16 season with a partially torn Achilles tendon.
Forward Trevon Bluiett has withdrawn from consideration from the NBA draft and will return to Xavier for his junior season.