Alexander Zverev is in no mood to celebrate his place at the ATP Finals just yet as he targets further success, starting in the Shanghai Masters semi-finals against Novak Djokovic.
The German secured a berth in London for the second successive year as he defeated Kyle Edmund in the last eight in China on Friday, setting up a clash with the in-form Djokovic.
Zverev is keen to keep going, though, insisting he is not yet satisfied.
"This is very special to me, qualifying for the second year in a row," he said. "But I don't want to stop here.
"There's a lot more tennis going on until the end of the year. I'm in the semi-finals of the Masters and I don't really want to be satisfied here, I want to keep going."
On his semi-final, Zverev added: "With Novak winning the last two grand slams, he's probably, on paper, the best player right now in the world. It's going to be a very interesting match."
And Djokovic, a 7-6 (7-1) 6-3 winner over Kevin Anderson, had a similar take on the upcoming match.
"[Zverev] has improved a lot and he has established himself as a top player. It's going to be definitely a close match," he said.
"I think [it will be] quite similar in style of the play to [the quarter-final] match. Kevin is a big server, big hitter from the back of the court, really aggressive, tall. Sascha is similar to that."
Meanwhile, Borna Coric set up a semi-final against defending champion Roger Federer as he saw off Australia's Matthew Ebden 7-5 6-4.
Federer's progression was secured as he edged out Kei Nishikori 6-4 7-6 (7-4), but Coric's fine year included victory over the Swiss great at the Gerry Weber Open in June.
