NEW YORK (Ticker) -- Duke coach Mike Krzyzewski had seen enough just 33 seconds into the second half. J.J. Redick got the message.
Redick scored 19 of his 26 points in the second half as No. 7 Duke rallied for a 78-67 victory over Oklahoma in the Dreyfus Classic at Madison Square Garden.
After Sooners forward Taj Majal converted an offensive rebound to give Oklahoma a 41-29 lead on the first possession of the second half, Krzyzewski called a timeout.
"Let's put it this way, the first play of the half wasn't meant for us to throw the ball out bounds," Krzyzewski said. "I said that you either play like men right now, or we're going to get blown out of the gym. There was no screaming or anything. It was time to be men."
Duke went on a 29-11 run immediately after the timeout to take a 58-52 lead with just over 10 minutes left. Redick scored 13 points during the run. He converted a three-point play for a 51-50 lead, then hit consecutive 3-pointers on the Blue Devils' next two possessions.
Redick hit his first six shots of the half and finished 7-of-16 from the field, including 4-of-9 from the arc and 6-of-7 on free throws.
"We got unbelievable contributions from Daniel (Ewing) and J.J. in the second half," Krzyzewski said. "In our two biggest wins this season, this one and Michigan State, those kids really stepped up, more than they usually step up."
The Duke defense picked up the intensity in the second half as well. Oklahoma, entering the game shooting 51 percent, converted just 9-of-28 shots in the second half and shot 39 percent (23-of-59) for the game.
"We played much better defense in the second half," Krzyzewski said. "We were all over the court in the first half and, at the half, I said to pick them up at half court and stop fouling."
Redick has been noted this season for big halves. In the first halves of earlier games this season, Redick scored 21 points against Michigan State and 19 against Valparaiso.
"I don't think I ever lost my shot," Redick said. "There were a couple in the first half that were short and a couple that I forced, but I found it. When they start falling, it feels like everything will go.
"I think we ran too many sets and that may have restricted us (in the first half). Coach let us go motion for a few minutes and let us be basketball players and make plays."
Ewing scored 12 of his 17 points in the second half and Sheldon Williams added 14 points, 13 rebounds and three blocked shots for Duke (8-0), which converted 16-of-26 shots in the second half and shot 54 percent (27-of-50) for the game.
"It was a real good win for us that gives us more confidence," Ewing said. "It shows we still have some stuff we can improve on. Some guys came in off the bench and picked things up. DeMarcus Nelson came off the bench and made some big plays for us. We don't rely solely on one player to win the game for us."
It was the third straight double-double for Williams and sixth overall. Williams, a native of Forest Park, Oklahoma and a two-time Gatorade Player of the Year, had to play big because forward Shavlik Randolph fouled out with no points in 14 minutes with 11:29 remaining.
Nelson scored 11 points off the bench and Sean Dockery added 10 for the Blue Devils, who have started the season 8-0 for the fourth time in five years.
"One of their players laughed at us (early in second half) and that fueled our comeback," Nelson said. "We played with a real big chip on our shoulders the last 19 minutes and it really showed. We had some gutsy play and hit some really big shots."
Gray had 18 points and 12 rebounds and Terrell Everett added 17 points for Oklahoma (6-2), which shot just 39 percent (23-of-59) for the game and made just 9-of-28 shots in the second half.
"We had a chance to win the game," Oklahoma coach Kelvin Sampson said. "We let it get away from us in a six, seven-minute stretch. We had chances to get it back to four or five points, but we just didn't make the play. We got beat by a team that was better than us today. As the season progresses, we are going to get better.
"Redick hit a couple of head scratchers, but we were prepared for that. We saw the Michigan State game and he hit some great shots against them. You have to give him credit for having great confidence. He is a great shooter. Period."
Oklahoma's pressure man-to-man defense forced 10 turnovers in the first half and converted them into 16 points in the first half. After Redick hit a 3-pointer with 5:42 left in the half to draw Duke to within 26-25, Oklahoma closed the half on a 13-4 run for a 39-29 lead. Everett and Jaison Williams harassed Redick into 1-of-7 shooting before the break.
Duke improved to 4-0 all-time against Oklahoma and 6-3 at Madison Square Garden. The Sooners fell to 4-12 at the Garden.