Billy Joe Saunders and Saul ‘Canelo’ Alvarez are in disagreement over the size of the ring for their fight, according to Tyson Fury.
Canelo then hopes to move onto a fight with IBF champion Caleb Plant in September, assuming he defeats Saunders.
However the two fighters are currently at odds over the size of the ring in which they will compete, Fury reported on social media.
"I got off the phone with Billy Joe. It seems like they are trying a lot of tricks in Texas with him,” he said.
"I just want to say; you can try all of the motherf— tricks in the world but you won't beat Billy Joe.
"Play fair, guys. Play fair, now."
On the Behind The Gloves podcast, Saunders previously explained his thoughts on the ring size, saying: "You don't go into a 70,000-seat [venue] and dance in a 16ft or 18ft ring, or even a 20ft ring.
"This magnitude of a fight has to be on a fair playing field. A proper legitimate ring, proper legitimate gloves.
"I just want a fair shake of the dice."