Brazilian football expert Tim Vickery has no doubts about the ability of Andrey Santos, insisting it was wrong for Brazil not to take him to the World Cup.
However, Vickery insists Santos will never reach his potential unless he plays regularly at new club Manchester United.
After Santos' struggles with Chelsea, Vickery also says the midfielder will need a stable environment at United if he is to realise the potential he showed when breaking through at Vasco da Gama.