Former world number one Serena Williams has yet to make a decision about her participation at the Australian Open, while world number 12 Svetlana Kuznetsova is also a doubt for the first grand slam of 2018 after undergoing wrist surgery. Williams was around two months pregnant when she captured her 23rd grand slam singles title in Melbourne earlier this year and was hoping to defend her crown next January following the birth of her daughter in September. "Serena is getting ready for 2018," the 36-year-old American's coach Patrick Mouratoglou told CNN. "She is practicing and getting back in shape. I will be joining her soon in Florida.

Serena Williams