The Chelsea attacker dipped alarmingly towards the end of the season and was even accused by manager Jose Mourinho of having one eye on the World Cup.
As their number ten and star playmaker, Brazil fans will be hoping this was the case.
Should Oscar fail to shine, they need not worry – there has been a certain other Brazilian who has worked his socks off for Chelsea and produced when Oscar could not – and luckily for them he is in their squad.
Willian may not start every match, but he is one to take note of.