The five time winners made no mistakes, unlike Argentina and Germany
Richarlison bashed in two goals to give favourites Brazil a strong start to their World Cup 2022 bid.
Neymar limped off with an ankle problem in the only bad news for Tite’s side.
Richarlison turned home a rebound from Vincius Junior’s shot for the opener and then scored a brilliant acrobatic volley from Vinicius’s cross.
The five-time World Cup winners were convincing and stopped Serbia from creating a shot on target.
Casemiro hit the bar among other chances for Brazil in what could have been a bigger romp on a different day.