Joel Embiid scored 18 points and played a season-high 30 minutes for the 76ers on Sunday night against Atlanta after he missed the last nine games in large part because of a sore right knee. Embiid had played in only six of the previous 18 games and averaged 19.7 points and 5.5 rebounds for a Sixers team that has hovered around .500 without him. The 76ers lost to Atlanta 142-134 in double overtime and fell to 4-3 with Embiid.