Phoenix, AZ -- (Sports Network) - Marvin Williams scored 19 points, hauled in six rebounds and dished out four assists to lead the Atlanta Hawks in a 100-96 victory over the Phoenix Suns in preseason action.

Josh Smith added 18 points for the Hawks, who opened their preseason campaign with a 118-101 victory over Orlando on Monday. Joe Johnson added 14 points and Ronald Murray 13 in victory.

Shaquille O'Neal registered game-highs with 21 points and 10 boards for the Suns, who opened their preseason on a sour note. Alando Tucker added 14 points, while Matt Barnes and Louis Amundson each scored 12 in defeat.

The Suns, who were playing without Amare Stoudemire (torn iris in his right eye) and Leandro Barbosa (personal reasons), were unable to give new head coach Terry Porter a win in his preseason debut with the team.