Jack Cartwright extended his perfect professional record and retained his bantamweight title in the Cage Warriors 121 co-main event, but the fight was anything but plain sailing for the unbeaten Brit. Cartwright was given all he could handle by Poland’s Sylwester Miller in their bantamweight title tussle, but the challenger’s ground-and-pound technique ultimately led to his own downfall when he was disqualified in the fourth round after connecting with repeated headbutts on the champion. In a grueling encounter, Miller enjoyed significant success with his takedowns and used his shorter stature to duck under Cartwright’s power punches and launch himself into a series of successful takedowns. The problem for Miller came once the fight was on the canvas, however, as the Pole looked to launch his full body weight into his ground-and-pound. His punches connected with plenty of force to impress the judges, but things started to go awry in Round 2 when he threw himself forward for one particular punch and ended up launching his head into the face of the champion.