David Haye insists Wladimir Klitschko's preparations for Anthony Joshua fight are not going well

Klitschko will face Joshua on April 29 at Wembley Stadium in an effort to win back the IBF and WBA heavyweight titles he lost to Tyson Fury in 2015.

The 41-year-old Ukrainian has not fought since but revealed back in December that he would return to the ring against the unbeaten Joshua.

The Brit meanwhile has won all 18 of his professional fights by knockout and is hoping to pick up his second world title.

And fellow heavyweight Haye has revealed that Klitschko’s condition is nowhere near championship level after 14 months out of action.