The win was the second straight for the Razorbacks, who survived the hot-shooting Tigers and guard Frankie Sullivan's five second-half 3-pointers.
Young added 22 points and Mardracus Wade had 12 for Arkansas (11-5, 2-1 Southeastern), which now has won seven of its last eight games. Powell had 21 points in the second half and overtimes, finishing with his second-highest point total of the season.
Sullivan led Auburn (8-8, 2-1) with 26 points, 23 of them after halftime. He was 5 of 11 on 3-pointers, and the Tigers were 11 of 25 overall from behind the arc.
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After John Calipari's comments about the Louisville scandal, Rick Pitino says that Calipari should not be worried about other programs and to keep quiet unless he is praising another institution.
College basketball coaches across the country will hit the recruiting trail hard in July to target the Class of 2017's top prospects. Which players are the nation's top programs targeting?