Ana Ivanovic suffered an injury scare as she began the defence of her title at the Tournament of Champions with a 6-3 6-3 win over Italy's Roberta Vinci.
World No 1 Novak Djokovic won a hard fought three setter against veteran Xavier Malisse at the Swiss Indoors on Tuesday as he revealed he has recovered from what he termed the worst injury of his career.
Statistically Caroline Wozniacki remains the best female tennis player in the world but the controversy over her number one status showed no signs of abating after her season ended in disappointment at the WTA Championships.
Petra Kvitova, the 21-year-old Czech left-hander who caused a sensation by winning Wimbledon as an outsider four months ago, proved she is now a full-fledged member of the sport's elite by winning the year-end WTA Championships.
A lot of things are conspiring to keep Zheng Jie off the tennis court. Two tough surgeries, a happy marriage, her 28th birthday - any one of those might be enough to convince another player it's time to put the racket away.
Petra Kvitova let her racket do the talking when the fast-rising Czech backed up her shock Wimbledon crown by winning the WTA Championships at the first time of asking on Sunday.
He's got one of the world's best coaches. He's got a scary level of confidence. And now, Zhang Ze has two titles to add to his rsum. So what's next for China's top male tennis player?
Australia's Samantha Stosur destroyed China's Li Na 6-1 6-0 in little more than an hour to reach the semi-finals of the WTA Championships for the second consecutive year on Friday.
A weary Caroline Wozniacki was sent packing from the WTA Championships after losing 6-4 6-2 to powerful Czech Petra Kvitova in her final round-robin match on Thursday.
Maria Sharapova's season ended in disappointment on Wednesday as she saw her hopes of regaining the title at the WTA Championships after a seven-year gap and of dethroning Caroline Wozniacki as world No 1 dashed because she is still feeling the effects of an ankle injury.
Caroline Wozniacki celebrated in defeat on Wednesday after injured Russian Maria Sharapova's withdrawal from the season-ending WTA Championships made sure the Dane would end the year as world number one.
Maria Sharapova and Caroline Wozniacki, the former and current world number ones, would welcome the WTA Championships moving to join the men's end-of-season showpiece.