WILLIE MASON - RUGBY LEAGUE'S NEWEST MODEL CITIZEN

He's the Bulldogs former bad boy who's fashioning a new image and this Sunday morning, Channel Seven viewers can see him live on Sportsworld .

Rugby league enforcer Willie Mason will join hosts Johanna Griggs and Matthew White in the studio. The game has been through the wringer again this week, with Andrew Johns' misdemeanour dominating headlines. Johanna and Matt will get Willie's take on the state of the game, on and off the field.

Also on Sportsworld , proof that money talks. As the premier league kicks off, reporter Adam Peacock goes behind the scenes at Chelsea, the world's most successful football team.

Brett Ogle is in to give his unique spin on the US PGA golf, plus as the world basketball championships begin, Shane 'Hammer' Heal talks about the future of the game in Australia .

And of course, the show's AFL experts, Basil Zempilasand David "The Ox" Schwarz will be in with all the action from round 20.

All that, plus all the latest sports news from here and around the globe with Kylie Gillies and the chance for viewers to win a thousand dollars cash in the memorable moments competition.

Sportsworld screens on Sundays at 9.30am on Seven.