NCAA BK

Allen's 3s lead No. 2 seed Duke to 87-65 win over Troy

Duke's Matt Jones (13) celebrates with Grayson Allen (3) during the first half against Troy in a first-round game of the NCAA men's college basketball tournament in Greenville, S.C., Friday, March 17, 2017. (AP Photo/Rainier Ehrhardt)

Duke's Matt Jones (13) celebrates with Grayson Allen (3) during the first half against Troy in a first-round game of the NCAA men's college basketball tournament in Greenville, S.C., Friday, March 17, 2017. (AP Photo/Rainier Ehrhardt)

GREENVILLE, S.C. (AP) Grayson Allen had 21 points off five 3-pointers, Jayson Tatum had 18 points and 12 rebounds, and second-seeded Duke continued its perfect postseason with an 87-65 victory over Troy in the NCAA Tournament on Friday night to start the East Region.

The Blue Devils (29-7) became the first team to win four games on the way to the Atlantic Coast Conference Tournament crown last week. They kept up that pace in blowing past the 15th-seeded Trojans (22-15).

Duke will take on either No. 7 seed South Carolina or No. 10 seed Marquette and its coach, former Blue Devils point guard and assistant Steve Wojciechowski, on Sunday.

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The Blue Devils improved to 34-7 all-time in openers and put this one out of reach early with their 3-point shooting.

Jordon Varnado had 18 points to lead Troy, which made its first NCAA appearance since 2003.