Fresh off the news, that his rematch with Wladimir Klitschko has been postponed, Tyson Fury has been named in a doping investigation.

According to the Sunday Mirror, the World Heavyweight Champion had traces of the steroid nandrolone found in his system after a doping test last year, before the Klitschko fight.

Fury's cousin Hughie is also being investigated as similar levels of the steroid were found in the 21-year-old. The younger Fury is also unbeaten in his professional career.

Tyson Fury says he sprained his ankle while out runninghttps://t.co/UOAb9WeAaG

— Newstalk Sport (@NewstalkSport) June 25, 2016

According to the report, both fighters have already met with UK Anti-Doping and will meet the British Boxing Board of Control in the coming weeks.

If Fury is found to have an unacceptable reason for the above-average nandrolone in his system, he may be stripped of his titles.

The rematch with Klitschko was postponed earlier this week, as Fury revealed he sprained an ankle in training for July's bout. No new date has yet been set,