Serena set for Hopman Cup in 2008

She will team up with Mardy Fish to lead the US challenge at the mixed teams event, starting 29 December.

The 26-year-old appeared once before in the tournament, steering the USA to victory in 2003 with James Blake.

Williams, who will play in the WTA Championships in Madrid from 6-11 November, also captured the Australian Open title in that year.

The eight-time Grand Slam champion won this year's crown when she trounced top seed Maria Sharapova 6-1 6-2 in the final in January.

In the Hopman Cup, second-seeded Williams and Fish will face a fierce challenge from Serbian duo Novak Djokovic and Jelena Jankovic.

Other countries taking part are hosts Australia, France, the Czech Republic, India, Argentina and the winner of the six-nation Asian Hopman Cup.

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