Serena Williams, Billie Jean King and co congratulate Caroline Wozniacki

Caroline Wozniacki joined the Grand Slam winner’s circle on Saturday when she won the Australian Open final.

The Dane beat Simona Halep in three sets on Rod Laver Arena in what many felt was one of the best women’s finals in recent years to win her first major after losing her two previous finals.

Wozniacki also replaced Halep as world No 1 and the tennis world took to Twitter to congratulate

Let’s start with Billie Jean King, who handed over the trophy to Caroline Wozniacki on Saturday and she also tweeted a kind message.

Serena Williams and Wozniacki are good friends as they even holiday together and of course the American congratulated the Dane.

Former Wimbledon winner Marion Bartoli, who will make her tennis comeback in a few weeks, felt it was “one of the best women’s finals”.

British No 1 Johanna Konta was another who was delighted with the quality of the tennis.

Petra Kvitova didn’t watch it, but was happy for Wozniacki.

Short and sweet from Victoria Azarenka.

Heather Watson was emotional.

Even the men got in on the act with Kevin Anderson saying the Dane “deserves it”.

Boris Becker…

Andy Roddick was another who was delighted for Wozniacki.

Greg Rusedski…

Oh and another great Dane in Peter Schmeichel, the former Manchester United and Denmark goalkeeper, was proud.