World number six Andy Roddick and number 17 James Blake will represent the United States in their Davis Cup quarter-final in Croatia next month, captain Patrick McEnroe.

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The world's top-ranked doubles team of Bob and Mike Bryan will also be in the US line-up for the July 10-12 tie on an indoor clay court at the Zatika Sports Hall in Porec.

"Our guys have once again answered the call and are ready to accept the challenge of representing their country on the road under tough conditions," McEnroe said in a statement.

The tie will be the third Davis Cup meeting between the two countries, with Croatia leading the series, 2-0.

Croatia are expected to announce their team Tuesday.