Dual-code superstar and occasional boxer Sonny Bill Williams has sensationally called out Logan Paul on Twitter.

SBW took offence to Paul’s appearance at the UFC event in Perth where he was seated cage-side.

“Just listened to a talk on who’s popular with the youth today & @LoganPaul name came up,” he wrote.

“I observed how he carried himself @ the ufc event in Perth & wasn’t impressed. A man that stands for nothing will fall for anything – that’s the category I put guys like this in.”

You can see the tweet below.