UPDATE 1-Soccer-Venezuela register first victory over Brazil

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BOSTON, June 6 (Reuters) - Unsung Venezuela produced two superb first-half goals to stun Brazil 2-0 in a friendly on Friday, their first win against the five-times world champions.

Giancarlo Maldonado struck in the fifth minute and Ronald Vargas notched the second just before halftime to embarrass Brazil, who had averaged more than four goals a game in winning the previous 17 meetings between the sides.

Brazil, who struggled to beat Canada 3-2 last Saturday, also lost a 15-match unbeaten run stretching back to their 2-0 defeat to Mexico in the Copa America just under a year ago.

Brazil strikers Alexandro Pato, Adriano and Robinho appeared out of sorts against slick-passing opponents, who defended well and looked dangerous going forward.

"We played badly," Brazil coach Dunga said in a touchline television interview after the worst possible warm-up for the World Cup qualifiers against Paraguay and Argentina later this month.

"We conceded two goals in the first half. In the second half, we improved, we created more chances but we couldn't score."

Substitute Diego said: "It was a friendly, a game we could afford to lose."

Although not a competitive match, the win will still go down as a landmark for Venezuela -- the only South American team never to have played at the World Cup -- and 35-year-old coach Cesar Farias, who has only been in charge for six months.