Andy Ruiz Jr rules out UK rematch with Anthony Joshua; says it's a trap

Andy Ruiz Jnr has declared that he will not agree to a rematch to fight Anthony Joshua in the United Kingdom as he fears a 'set-up'. 

The Mexican champion stunned the world on the 1st of June when he defeated Joshua in the seventh round to become WBA, WBO, IBF and IBO champion of the world. 

While reacting to the news of Dillian Whyte's alleged failed drugs test, the Mexican-American  posted a tweet saying: 'I’m not going to the UK for the rematch #issasetup.'

Whyte reportedly tested positive 'for at least two banned substances' before to Saturday's victory over Oscar Rivas. 

Daily Mail reported that the British Boxing Board of Control allowed the fight to go ahead according to legal protocol pending B sample tests and appeals. If Whyte's B sample is negative then he would be cleared of any wrongdoing.