Wellington Phoenix have signed former Norwich City, Celtic and Sheffield Wednesday striker Gary Hooper as their marquee player in 2019-20.
Brisbane Roar claimed a first A-League point for Robbie Fowler in thrilling fashion, while Western United registered a maiden victory.
Western Sydney Wanderers opened their A-League season with a win over Central Coast Mariners, while the Melbourne derby ended in a 0-0 draw.
Sydney FC, last season's Grand Final winners, commenced the new A-League campaign with a thrilling win away at Adelaide United.
Former Melbourne Victory star Besart Berisha has signed with Western United.
Alexander Meier, 36, will play for Markus Babbel's Western Sydney Wanderers in 2019-20.
Serge Gnabry's injury has opened the door for Bayern Munich new boy Sarpreet Singh to feature against Borussia Dortmund.
Kylian Mbappe and Edinson Cavani scored first-half goals for Paris Saint-Germain in a 3-0 friendly win over Sydney FC on Tuesday.
Western United have signed former Italy international Alessandro Diamanti ahead of their first A-League season.
Ole Gunnar Solskjaer was asked whether Paul Pogba could captain Manchester United next season after their 2-0 friendly win over Perth Glory.