Macarthur trail A-League leaders Central Coast Mariners by a point following their 1-0 win over Sydney FC.
Sydney FC won last year's A-League title but the runners-up, Melbourne City, got a small measure of revenge for their Grand Final defeat.
Western United were too good for Macarthur in the A-League with Besart Berisha in fine form at Mars Stadium.
Sydney FC moved third in the A-League with a win over Wellington Phoenix, who have just four points from five games.
Brisbane Roar and Sydney FC recorded convincing A-League wins as Melbourne Victory drew their match with Western United.
Melbourne City battled back to win in the A-League on Saturday, but defending champions Sydney FC were held to a draw.
Sydney FC started the defence of their A-League title with a 2-1 win over Wellington Phoenix, while Brisbane Roar got their first victory.
After dominating in the A-League in his previous spell, Bobo has returned to Sydney FC.
With the help of Opta data, we assess just what round one means in the A-League.
An NBA champion with the Golden State Warriors in 2015, Andrew Bogut has retired.