Paris: Rafael Nadal's return to action after a seven-month injury layoff will be the focus of attention in tennis in Chile this week.
The 11-time Grand Slam champion has been on the sidelines since he was beaten in the second round at Wimbledon by Czech journeyman Lukas Rosol in late June.
During that time, Roger Federer, Andy Murray and Novak Djokovic have won Grand Slam titles and, as the other member of the sport's Big Four, the question is whether the Spaniard will ever be able to compete again at the highest level.
Nadal, who will be 27 in June, has been careful to play down expectations.
Yes, he still has some pain from his troublesome knees and no, he does not expect to immediately rediscover his old winning ways in his first tournament back at Vina del Mar in Chile, the starter for the claycourt season that climaxes with the French Open in Paris in May/June.
"Of course I still feel pain in the knee that sometimes stops me from playing, but you have to start sometime and I am here to try and give my best and hope that my knee comes through it," he added.
"Undoubtedly the clay surface is a little less aggressive on my knee," he said. "My aim is to compete courageously and hopefully the knee will stand up to it.
"There is always the possibility that I will lose in the first round after so many months without competing."
The consensus is that Nadal, who had been due to return to action at the notoriously physical Australian Open in January, but who pulled out due to a viral condition, has been wise to bet on clay once again.
Seven of his 11 Grand Slam titles have come on the claycourts of Roland Garros and he has amassed an unprecedented career win record of 254 out of 273 on the surface since he first exploded onto the international scene in 2005.