?SUBSCRIBE http://bit.ly/SSBoxingSub Jack Cullen defends his British and Commonwealth super-middleweight titles against Zak Chelli on the undercard of Natasha Jonas' world title fight with Mikaela Mayer this Saturday, live on Sky Sports. The pair will clash for the second time after a 2020 contest ended in a controversial draw, with Chelli insisting that he deserved to receive the decision. ?TWITTER: https://twitter.com/skysportsboxing ?FACEBOOK: http://www.facebook.com/skysportsboxing ?WEBSITE: http://www.skysports.com/boxing MORE FROM SKY SPORTS ON YOUTUBE: ?SKY SPORTS FOOTBALL: http://bit.ly/SSFootballSub ?SKY SPORTS BOXING: http://bit.ly/SSBoxingSub ?SKY SPORTS CRICKET: http://bit.ly/SubscribeSkyCricket ?SOCCER AM: http://bit.ly/SoccerAMSub ?SKY SPORTS F1: http://bit.ly/SubscribeSkyF1 ?SKY SPORTS: http://bit.ly/SkySportsSub ?SKY SPORTS GOLF: https://bit.ly/SubscribeSkySportsGolf