Joe Rogan has been accused of “spreading Russian propaganda” by a Ukrainian champion boxer after he claimed the country’s leaders and the United States risked starting the Third World War.

On Friday’s episode of the Joe Rogan Experience, the podcast host said Joe Biden’s decision to allow Kyiv to strike Russian territory with its long-range missiles was “nuts”.

Wladimir Klitschko, the former heavyweight world champion, challenged Rogan in a social media video message, saying that he was spewing “Putin’s propaganda” on his show.

“You talk about these American weapons that are being sent to Ukraine, which you believe will lead to the Third World War, you’re repeating Russian propaganda. Putin’s Russia is in trouble, so Putin wants to scare you and people like you,” Klitschko said.