Novak Djokovic can complete a stunning return to world number one at the Paris Masters this week as Rafael Nadal hits the comeback trail for the first time since limping out of the US Open.
Roger Federer could also resurface in the French capital after a three-year absence, although the 20-time Grand Slam champion said a decision on his participation will be made on Tuesday.
The Swiss star won his 99th career title in Basel over the weekend but hasn't played in Paris since 2015 due to a combination of injury and selective scheduling.
Djokovic also missed last year's event as he dropped outside the top 10 for the first time in over a decade, but the Serb, who was lingering down at a ranking of 22nd as recently as June, arrives having won 27 of his last 28 matches.
"In both the US Open and Shanghai, I've played as good as ever," said Djokovic, who claimed his 14th major championship in New York.
"So I really enjoy tennis at the moment and enjoy competing, because obviously when you're winning that many matches you have a lot of confidence."
"So of course right now I'm aware of it and I'm going to give my very best to try to achieve it."
- Realistic expectations -
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"I am not thinking about big improvements or big things. I am just thinking about small improvements, and that's the goal."
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