The most successful tennis player of all-time says Nick Kyrgios can still become the best player in the world.

Margaret Court, who won a record 192 titles throughout her career, told Denis Walter the young Australian tennis star needed to get the mental side of his game under control.

‘I think Kyrgios has got the most talent, in the world, probably,’ she said on 3AW.

‘But I think his mind has to get in line with everything else.

‘You’ve got to control that, you’ve got to train that.

‘You can have all the best strokes in the world but never make it.’

Court was in studio discussing her new book, ‘Margaret Court: The Autobiography.’

Click PLAY below to hear more from Margaret Court on 3AW