UPDATE 1-Soccer-Brazil capitalise on blunder to thrash Uruguay

* Brazil take lead following mistake by Uruguay keeper

* Luis Fabiano scores and gets sent off

* Uruguay also finish with 10 men

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MONTEVIDEO, June 6 (Reuters) - Brazil capitalised on an early blunder by goalkeeper Sebastian Viera to thrash Uruguay 4-0 in a World Cup qualifier on Saturday and claim their first away win against their smaller neighbours for 33 years.

Daniel Alves scored early when his speculative 40-metre shot bounced around six metres in front of goal, was completely misjudged by Viera and flew into the net.

Juan headed a second before halftime and Luis Fabiano fired the third early in the second half but was later sent off. Kaka completed the rout when he won and converted a penalty.

The win kept Brazil well on course for South Africa, taking them level on 24 points with South American group leaders Paraguay who were hosting Chile later on Saturday.

Uruguay's chances of qualifying directly took a severe blow as they remained fifth, outside the top four who go straight to South Africa from the 10-team group.