DURHAM, North Carolina (Ticker) -- The Spartans had four players in double figures. But they were no match for Duke's dynamic backcourt duo.

J.J. Redick and Daniel Ewing scored 29 points apiece as No. 10 Duke knocked off ninth-ranked Michigan State, 81-74, in front of the 210th consecutive sellout at Cameron Indoor Stadium in the ACC-Big Ten Challenge.

Michigan State, which trailed the entire second half, was within 75-73 when Ewing knocked down a straight-away 3-pointer with 65 seconds left to push the Blue Devils lead to back to five.

Redick scored 21 points in the first half on 7-of-10 shooting as Duke posted a 44-36 advantage. He helped the Devils (4-0) overcome an early 19-7 deficit by connecting on three straight from the arc.

Ewing scored 15 in the second half, including the big 3-pointer, and was 10-of-14 for the game. Redick ended up 9-for-18. Each player knocked down five from the arc.

With Shelden Williams saddled with four fouls, Michigan State (3-1) went inside to Paul Davis, who converted two inside shots and brought the Spartans to within 73-72 on a layup with 2:23 remaining. But that was the Spartans' last field goal. Davis finished with 17 points and 10 rebounds.

The Spartans also shot themselves in the foot at the line, missing five of their last eight attempts. Duke converted 18-of-25 from the stripe.

Williams had 10 points, 12 rebounds and five assists for Duke, which improved to 6-0 in the ACC-Big Ten Challenge.

Alan Anderson scored 15 points, Maurice Ager added 12 and Chris Hill 11 for Michigan State, which dropped to 3-2 all-time in this event.

The win improved Krzyzewski's record to 5-0 against Michigan State. Izzo has lost all four times to the Blue Devils.