Britain’s Anthony Joshua (L) throws a punch at Cameroon-born Carlos Takam during their world Heavyweight title fight at The Principality Stadium in Cardiff on October 28, 2017. ADRIAN DENNIS / AFP Anthony Joshua maintained his 100 per cent knockout ratio by stopping a bloodied Carlos Takam in the tenth round on Saturday. The English boxer retained his International Boxing Federation and World Boxing Association world heavyweight titles with a devastating display of his punching power to finish Cameroon’s France-based challenger at the Principality Stadium. Takam became Joshua’s 20th consecutive knockout victim in a fourth defence of his IBF belt and first of his WBA title, but the challenger stubbornly resisted the champion after being cut by the right eye in the fourth round. “It was a good fight until the ref stopped it. I have the upmost respect for Takam,” said Joshua, who injured his nose from a headbutt in the second round. “Imagine if it’s broke and I couldn’t