Conner Vernon has broken a few tackles off of bubble screens this year. Credit: CHUCK LIDDY

WINSTON-SALEM, N.C.—It was a question that would cause many Duke fans pause and maybe even make some sort of audible noise. 

"Has Duke faced a lot of the bubble screen, jail break screen stuff?"

This was posed to Wake Forest coach Jim Grobe during his weekly sitdown with the print media. He had an immediate answer.