Sharapova’s conqueror 7/4 to progress through to semi-finals

Having dispatched of Anne Keothavong, Venus Williams (sort of) and Maria Sharapova, Andrea Petkovic has become the underdog in the Australian Open betting.

Petkovic’s reward for stunning Sharapova in the fourth round is a tie with the ninth seed Na Li and Petkovic is the underdog, just how she likes it, at 7/4 to beat Li.

Li was a shock first round casualty in the 2010 US Open but comes into this tournament on the back of a final appearance in Sydney, and the Chinese star has regained her form since her disappointment at Flushing Meadows and is 2/5 to beat Petkovic.

Petkovic will meet her match in Li and while the two have never met before, Li will be confident of easing through this match and is the value at 11/10 to beat Petkovic 2-0.

Li is a strong contender to take the Australian Open title and will face a semi-final with the winner of tonight’s other quarter-final, and at 4/6 to win the first set and the match, punters can find plenty of value in backing Li.

Caroline Wozniacki vs Francesca Schiavone

Following her marathon match with Svetlana Kuznetsova, Schiavone will face the world number one Wozniacki for a place in the semi-finals and after such a demanding fourth round match, punters should bet against Schiavone progressing.

Wozniacki is very short at 1/7 to beat the Italian, and while the head-to-head record reads 2-2, Wozniacki has won the last two encounters on the hard court.

Should Schiavone recover quickly from her match with Kuznetsova then the value is in backing Wozniacki to win the match 2-1 at 7/2.

But Wozniacki must be a shoe-in for the first set coming in to the match fresh, and the Dane is 3/10 to win the first set and win the match.

A £25 double on Li and Wozniacki both winning 2-1 would return £405. New customers can sign up here for a free tennis bet worth £25.