King: Laura must believe

Laura Robson: Needs self-belief, according to Billie Jean King

Billie Jean King believes Laura Robson's win over Kim Clijsters can be a watershed moment for the British teenager.

Robson has been tipped for stardom since winning the Wimbledon junior title in 2008 at the age of 14 and has been making steady progress since, breaking into the world's top 100 this year.

But her 7-6 (7/4) 7-6 (7/5) victory against Clijsters in the Belgian's final professional tournament really catapulted Robson onto the world stage.

It also sent Robson through to the third round at a grand slam for the first time, and she faces ninth seed and former French Open champion Li Na later today.

King, the winner of 39 grand slam titles in singles and doubles, said: "Having a win over Kim Clijsters will help her self-confidence and that's what she needs the most.

Transition

"Laura needs to believe in herself and her abilities, believe the ball is going in. Beating a player of Clijsters' ability and stature is really going to help her.

"I saw her junior final at Wimbledon and thought that this is the girl that is the best of the kids coming up. You have to be older now to make the transition and become a top player so it takes time."

It will be tough for the teenager to emulate her win over Clijsters, though, with Li one of the form players on hard courts this summer and a comfortable winner over Heather Watson in round one.

Robson said: "It's great to be through to the third round of a slam for the first time. I have a really tough match next round against Li Na.

"She's playing extremely well at the moment. She's in great form and just won Cincinnati. I'm going to have a little chat to Heather and see what her thoughts were."