DURHAM - If there were any thoughts that No. 1-ranked Duke is invincible, they were erased Thursday night.

Coach Mike Krzyzewski invited Cal Poly Pomona, the 2010 NCAA Division II champion, to meet the reigning Division I champions from Duke in an exhibition game.

Eventually seniors Kyle Singler and Nolan Smith combined with freshman Kyrie Irving in the second half to spark the Blue Devils to an 81-60 win at Cameron Indoor Stadium.