Nadal and Federer are joined in Group B by Jo-Wilfried Tsonga, who will be making his second appearance, and debutant Mardy Fish.
与费纳同在B组的还有第二次参加年终总决赛的特松加和初次露面的费什。
2
He'll take on the winner of Friday night's semifinal between three-time Australian Open winner Roger Federer and 2008 finalist Jo-Wilfried Tsonga.
他在决赛中的对手将是周五的另一场半决赛三届澳网冠军罗杰·费德勒和2008打入决赛的特松加中的胜者。
3
But Federer expects the Big Four will be challenged even more in the coming season, with the likes of Jo-Wilfried Tsonga and others in the Top 10 also in contention for major titles.