The Paris Saint-Germain star has enjoyed a seamless return to football after three months out with a broken foot, which he suffered in action for PSG back in February.
His fellow attackers Gabriel Jesus and Coutinho also scored in a match where Brazil dominated Austria that has been on an eight match unbeaten streak.
Tournament favourites Brazil will now head out to Russian Federation to continue preparations for their group-stage opener against Switzerland.
The first scare came in the third minute following a late tackle from behind by midfielder Alessandro Schoepf.
Each time, Neymar remained sitting on the pitch and holding his left ankle with a painful face, though he eventually got up and didn't looked hampered during play.
Deontay Wilder agrees to fight Anthony Joshua in world heavyweight unification fight
TV is Eddie's call", Finkel said. "All they have to do is tell us where to be and when to be there, and we'll be there". Wilder's team hope to have the contracts for the fight in the next 48 hours as the deal edges closer .
On Sunday, those in a bitterly divided land may put their differences to one side and finally unite in order to get behind a team reimagined under Tite and with a genuine chance of going all the way in Russian Federation.
The most extreme examples were the Confederations Cup final against Spain in 2013 when Brazil battered their opponents with 26 fouls and the infamous World Cup quarter-final against Colombia in 2014, where they gave away 31 free kicks.
Tite's men will open their World Cup campaign against Switzerland on June 17 before taking on Costa Rica and Serbia. Brazil, one of the contenders for the crown will look to do their last-minute adjustments and get things in order before Russian Federation 2018. The Brazilian figure dropped from 72 per cent in 2013, the year before the country hosted the World Cup.
Austria failed to qualify for the World Cup.
Austria, who failed to qualify for Russian Federation and have not competed at a World Cup since 1998, failed to pose much of a threat, though West Ham forward Marko Arnautovic did go close in the first half. It saw a seven-match winning streak, including victories over World Cup host Russian Federation and world champion Germany, come to an end.
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