RALEIGH, N.C. -- Daniel Coursey scored 17 points and Mercer pulled off the biggest upset in the NCAA tournament so far by knocking off Duke 78-71 Friday.
Jakob Gollon added 20 points for the 14th-seeded Bears.
The senior-laden Bears were simply too much for a Duke team with stars Rodney Hood and freshman Jabari Parker.
Mercer scored 11 straight points during the late 20-5 run that clinched the biggest victory in school history. It's the second one-and-done in three years for the third-seeded Blue Devils.
Mercer won the Atlantic Sun conference championship. That's the same league that produced 2013 tournament darling Florida Gulf Coast.
CBSSports.com notes that Mercer was led by a balanced group of vets -- all five starters are seniors -- and forced Duke out its comfort zone on offense.
Quinn Cook scored 23 points, Rasheed Sulaimon added 20 and those two guards combined for 12 of Duke's season-high-tying 15 3-pointers.
But the Blue Devils' defense - an uncharacteristic weakness all season - did them in again while all those Mercer seniors picked Duke apart down the stretch.
Duke went up 63-58 with 4:52 left after Parker converted a three-point play and Tyler Thornton hit three free throws.
Duke didn't score again until the final minute.
Coursey countered by rattling in a jumper in the lane, and after two empty possessions for Duke, some slick ball rotation by Mercer set up an open 3 from Anthony White Jr. that tied it at 63 with 2