Alexander-Walker leads No. 9 Hokies past Wake Forest, 87-71

Virginia Tech head coach Buzz Williams yells to his team during the first half of an NCAA college basketball game Saturday, Jan. 19, 2019, in Blacksburg, Va. (AP Photo/Don Petersen)

Wake Forest guard Chaundee Brown (23) shoots the ball against Virginia Tech guard Ty Outlaw (42) and Virginia Tech forward Kerry Blackshear Jr. (24) during the first half of an NCAA college basketball game Saturday, Jan. 19, 2019, in Blacksburg, Va. (AP Photo/Don Petersen)

Wake Forest guard Brandon Childress (0) looks to pass against Virginia Tech guard Wabissa Bede (3) during the first half of an NCAA college basketball game Saturday, Jan. 19, 2019, in Blacksburg, Va. (AP Photo/Don Petersen)

Wake Forest guard Torry Johnson (4) shoots over Virginia Tech guard Ty Outlaw (42) during the first half of an NCAA college basketball game Saturday, Jan. 19, 2019, in Blacksburg, Va. (AP Photo/Don Petersen)

Wake Forest guard Brandon Childress (0) drives against Virginia Tech guard Ty Outlaw (42) during the first half of an NCAA college basketball game Saturday, Jan. 19, 2019, in Blacksburg, Va. (AP Photo/Don Petersen)