Tyson Fury says Anthony Joshua hasn't improved since 2015

Tyson Fury has added further fire to his ongoing rivalry with Anthony Joshua after he claimed the current world champion hasn't improved since 2015.

Fury, 29, has been absent from the heavyweight circuit for over two years after finding himself at the centre of a UK Anti-Doping charge in June 2016, following a positive test for the banned steroid nandrolone.

However, the undefeated fighter is now free to box again after accepting a backdated two-year ban from UKAD on Tuesday, and is eager to reclaim the belts he earned from his points victory over Wladimir Klitschko in November 2015.

The Manchester-born fighter is back in training and is planning to fight three times in 2018 -- subject to regaining his boxing licence -- with IBF and WBA Super titleholder Joshua high on his list of targets.

When asked how far the former Olympic gold medalist has progressed in his absence, Fury delivered a scathing assessment of his prospective rival, stating: "He's still the same, a bit heavier, a few more muscles on him -- that's it really,

"The man can't box -- he's not a boxer, he's a brawler.

"The truth is that he would get his head punched in by anyone who can box and move a bit, simple as that."

Although Joshua has continued to impress with a number of powerful displays -- including an 11th-round knockout victory against Klitschko in April -- Fury insists he is not capable of adding greater mobility to his arsenal.

"You can never make a cart horse into a race horse," he added. "He isn't built for movement or speed, he's built for power and you can't make a power man a speed man.

"Without speed and movement in heavyweight boxing, you're a limited fighter. You can't blast through everybody, as we saw with Takam."