Neymar has suffered many issues with his right foot and underwent surgery four years ago for a fractured metatarsal.
Australia got off to a terrible start when centre back Bailey Wright gave away possession with the second pass of the game, allowing Diego Souza to hammer home a low shot to groans from most of the 49,000 fans at the Melbourne Cricket Ground.
Brazil's Gabriel Jesus made one goal, scored another and was sent off in the second half as they beat Peru 3-1 to win the Copa America for the ninth time.
Brazil survived an early scare and some physical tackling to beat Portugal 3-1 in a friendly in Boston that confirmed their early status as one of the favourites to win the World Cup on home soil next year.
Karim Benzema scored his sixth goal in four games as Real Madrid beat Alaves 3-0 on Sunday for a fourth successive La Liga victory which took the European champions to within eight points of leaders Barcelona.
A round-up of Wednesday's league stage matches in the UEFA Champions League.