Andrey Rublev says he will be able to learn a huge amount from his rivals as he prepares for his first appearance at the ATP Finals.
Rublev has had a standout season on the Tour this year, winning five titles - more than any other player.
That was enough to power his breakthrough into the top ten and into the season-ending tour finals for the first time.
He, though, says he can use it as a measuring stick to see just how far he has to progress to make sure he can maintain his level and make himself a fixture in tennis' elite.
"It's going to be a really great experience for me to see what I need to work at to be at this level and to compete with the best players," he said. "It will be a great lesson for me.
"I have been here before as a spectator in 2016. I fell in love when I saw it and it became a dream to try and be here one day to play here and to compete. I am happy to finally be here.
"I will do my best to win the matches but I am not the player who has been at this level for many years.
"I have to be realistic. I arrived at this level but we will see if I have the level to be a part of it."
A quarter of the players at the ATP Finals are Russian this year, although no one from the country has won it for 11 years since Nikolay Davydenko in 2009.
Rublev, however, believes Russian tennis is in an incredibly healthy place right now.
"It's great that two players from Russia are here. We have more attention in Russia and they are starting to follow more tennis. It is great for Russian sport."
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