Ruud and Kyrgios reignite feud on social media: "What's his favourite clay court tournament?"

Casper Ruud and Nick Kyrgios have reignited their feud on social media with a series of Twitter posts on Thursday evening.

Their one match together came back in 2019 with Kyrgios hurling a chair onto the court and getting defaulted. Ruud called Kyrgios an idiot before the Aussie went onto Twitter to call him boring and to say what he wanted to say to his face.

The Norwegian has been cleaning up during the clay court swing and he is into the semi-final in Kitzbuhel with a third tournament win in three weeks potentially looming.

Kyrgios has made his thoughts abundently clear as of late on clay and with Ruud involved in that conversation, he replied to the semi-final line-up simply with a face palm emoji.

Ruud stoked the fire by replying to the ATP's request for questions for a Q&A feature by asking what his favourite clay court tournament is?

It seems their feud is far from over.