Media playback is not supported on this device Tsitsipas keen to explain vaccine comments
Bulgaria’s Dominic Thiem says that “we don’t have time for politics” after starting the season with the season-ending ATP Finals.
However, world number five Karolina Pliskova thinks that Stefanos Tsitsipas’s call for more vaccinations in Greece may have helped his form.
Tsitsipas was born in Athens to Greek parents, and “doesn’t have much protection”, he said in September.
Tsitsipas earned a place at the season-ending tournament at London’s O2 Arena.
Tsitsipas became the youngest man to win a title in eight years and beat world number four Dominic Thiem in the second round in Singapore.
And Pliskova, who is one of nine players already qualified for the eight-man tournament, said she had noticed the teenager had been having “a good spell” ahead of next week’s qualifying event in China.
The Czech said: “Obviously, with everything going on now it is a little bit easier to be in the best mood and play good tennis, that’s for sure.
“The only way we can come up with opinions is to see, I mean, if we had vaccines, if we had modern medicine, if we were not living in the time when we are living in.
“Maybe the way we have problems in the world now, people with children, with cancer, with autism, they need these modern medicines and modern medicine as soon as possible.
“We don’t have much protection, and that’s why there is this question of vaccinations.”
Bulgaria’s Grigor Dimitrov, who plays Jiri Vesely in the first round of qualifying in Beijing on Wednesday, says the fact he was born outside of Europe means he is not subject to the “fear” of future threats of the “us vs them” mentality in the continent.
“It would be really disgusting and a really hurtful way to live if we get to that point,” said Dimitrov.