Exclusively for Deezer listeners, here's some bonus material from this week's conversation between Joey Barton and Saracens player Alex Goode.

Welcome to The Edge, a show that aims to explore the unique talent and occasional darkness that drives elite performance in the worlds of sport, politics and music. This week Joey Barton sits down with rugby union player Alex Goode to delve into the culture of winning at Saracens.

Exclusively for Deezer listeners, here's some bonus material from this week's conversation between Joey Barton and boxer Tony Bellew. Tony explains how he came to came to be in the movie Creed.

Welcome to The Edge, a show that aims to explore the unique talent and occasional darkness that drives elite performance in the worlds of sport, politics and music. This week Joey Barton sits down with boxer Tony Bellew.

Exclusively for Deezer listeners, here's some bonus material from this week's conversation between Joey Barton and rugby player Danny Cipriani.

Welcome to The Edge, a show that aims to explore the unique talent and occasional darkness that drives elite performance in the worlds of sport, politics and music. This week Joey Barton sits down to talk to Wasps and England fly-half Danny Cipriani about the highs and lows of his career and what motivates him.

Exclusively for Deezer listeners, here's some bonus material from this week's conversation between Joey Barton and psychologist and writer Dr Kevin Dutton.

Welcome to The Edge, a show that aims to explore the unique talent and occasional darkness that drives elite performance in the worlds of sport, politics and music. This week Joey Barton sits down to talk to Dr Kevin Dutton, a psychologist and writer, specialising in the study of psychopathy.

You can take Kevin's psychopath test here: http://www.kevindutton.co.uk/test/the-psychopath-challenge/

Exclusively for Deezer listeners, here's some bonus material from this week's conversation between Joey Barton and former Manchester United and England defender Gary Neville.

Welcome to The Edge, a show that aims to explore the unique talent and occasional darkness that drives elite performance in the worlds of sport, politics and music. This week Joey Barton sits down to talk to Gary Neville, former Manchester United and England defender turned TV pundit.