World number five, Juan Martin del Potro, will miss this month’s Australian Open, as he continues his recovery from a fractured kneecap.
The Argentine sustained the injury in a heavy fall at the Shanghai Masters in October 2018.
“Recovery is going great and I will tell you later where I will be making my comeback,” the 2009 US Open champion said on social media.
“It won’t happen in Australia, but I’m happy with my progress.”
Del Potro has suffered from injuries since winning his only Grand Slam and, has had three operations on a wrist problem, which left him struggling to use his backhand.
However, he had a successful 2018, beating Roger Federer to claim the BNP Paribas Open title at Indian Wells in March.
The 30-year-old reached the semi-finals of the French Open, the last eight at Wimbledon and the final of the US Open, where he lost Novak Djokovic.
The Australian Open; the first Grand Slam tournament of the year is scheduled to kick off on January 14.