DOHA, Qatar —  Rafael Nadal and Roger Federer will open the 2009 ATP season by playing at the Qatar Open.

Qatar tennis federation president Nasser al-Kholiafi says Andy Murray and Andy Roddick will also take part in the hard-court tournament, which begins Jan. 5.

The tournament in Doha is one of three to start the 2009 tennis season, along with the Brisbane International in Australia, and the Chennai Open in India.

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