If Putin doesn't come and just plays games, it's the final sign that he doesn't want to end the war, he says to journalists in Kyiv.
The meeting with Erdogan will be on Wednesday or Thursday.
Doubts about Putin
Zelenskyj says that everything will be done for a meeting with Putin to take place, but he emphasizes that he doubts that the Russian will actually travel to Turkey.
I don't believe that Putin wants the war to end, that he doesn't want a ceasefire, doesn't want any negotiations, he says to journalists in Kyiv.
The previous plans for direct talks between Ukraine and Russia involve a meeting in Istanbul on Thursday - something that was first proposed by Putin over the weekend. If Putin chooses to go to Istanbul, Zelenskyj promises that both he and Erdogan will go there from the Turkish capital.
If US President Donald Trump shows up, which he has said he is interested in, it means a carrot for Putin, according to Zelenskyj.
We have invited President Trump to join us. I don't know how the US President will do, but if he confirms his participation, I believe it would give Putin additional drive to come.
"Clear signal"
Zelenskyj urges the US to hit Russia with tough sanctions if Putin ultimately rejects the Turkey meeting. He adds that a no from Putin would give "a clear signal that they don't want and don't intend to end the war".
Kaja Kallas, responsible for foreign affairs in the EU, also doubts that Putin will agree to meet Zelenskyj.
I think it would be good if they sat down. But I don't think Putin dares, she says in connection with a democracy conference in Copenhagen.
Kallas notes that it is over two months since Ukraine said yes to an unconditional ceasefire.
It is obvious that Russia is playing games, trying to win time, hoping that time is on their side. We have not seen any benevolent gestures from their side.
Trump says during his ongoing visit to Riyadh in Saudi Arabia that Foreign Minister Marco Rubio will represent the US in Turkey.
It could give quite a good result, says Trump in a speech.
The Kremlin has not given any information about Putin's possible presence in Turkey through spokesperson Dmitrij Peskov.