Ralph Sampson was in attendance for Thursday night's ACC showdown between No. 2 Virginia and Georgia Tech, but might've had mixed feelings. His alma mater is still undefeated following another splendid defensive effort. His son Robert, meanwhile, felt some of the brunt of that stingy Cavaliers Pack Line defense. Malcolm Brogdon had 13 points and four assists as Virginia shut down the Yellow Jackets 57-28 to remain one of two unbeaten teams in the country. Virginia (18-0, 6-0 ACC) held Georgia Tech to just 24.5 percent (12-of-49) shooting from the floor and didn't allow a 3-point basket (0-of-12). The Cavs are off to their best start since 1980-81, when Ralph Sampson helped them win their first 23 games. Marcus Georges-Hunt led the Yellow Jackets (9-9, 0-6) with just seven points. Robert Sampson was 1-of-6 from the field and finished with two points and seven rebounds for Georgia Tech, which is off to its worst start in ACC play since beginning 0-6 during the 2008-09 campaign.