Top-ranked Duke knocks off No. 8 Auburn in Maui semis

Auburn forward Horace Spencer (0) tries to stop Duke forward Zion Williamson (1) from reaching the basket during the second half of an NCAA college basketball game at the Maui Invitational, Tuesday, Nov. 20, 2018, in Lahaina, Hawaii. Duke defeated Auburn 78-72. (AP Photo/Marco Garcia)

LAHAINA, Hawaii — Duke hit Auburn with a flurry of alley-oops, acrobatic drives and step-back 3-pointers.