Nadal is my favorite tennis player

Why? because he is such a good tennis player and I like the way he looks lol. Anyway, Rafael Nadal and Roger Federer swap their gripping personal rivalry for Davis Cup duty this weekend with the two superstars having dramatically different ambitions.

Nadal leads Spain into a semi-final clash against defending champions USA in a Madrid bullring with a final date with either Argentina or Russia in the offing.

Federer, fresh from his 13th Grand Slam triumph at the US Open, hopes to guarantee Switzerland a place in the 2009 World Group with a home tie in Lausanne against Belgium.

World number three Novak Djokovic is also on national service leading Serbia into their play-off against 2005 runners-up Slovakia in Bratislava.

Nadal faces Sam Querrey in the opening rubber with David Ferrer next on against former world number one Andy Roddick.