Li Na, Petra Kvitova to play in Hopman Cup

French Open champion Li Na and Wimbledon winner Petra Kvitova will contest the mixed-teams Hopman Cup tennis event in January as part of the lead-up to the Australian Open.Li will partner 19-year-old Wu Di for China, while Kvitova will join ninth-ranked Tomas Berdych for the Czech Republic event at the end of the year.The fifth-ranked Li, who was also runner-up at this years Australian Open, became the first Asian player to win a Grand Slam singles title at Roland Garros.Former number 1 Lleyton Hewitt, whose world ranking has slipped to 165, will link up with number 30 Jarmila Gajdosova for Australia.