Errol Spence Jr is using Amir Khan's gym to prepare for his fight against Kell Brook.
The American challenger is finalising his training in the Lancashire facility owned by Brook's biggest rival before the Sky Sports Box Office fight for the IBF welterweight title at Bramall Lane.
"That's Amir Khan through and through," said Brook in Fuerteventura where his training camp has been based. "He would love to see me lose this fight so he doesn't have to fight me but that's not going to happen.
"He can lend Errol his gym but he can't save him on May 27 and the only thing on my mind is the fight.
"The fans know what I'm about. I've gone from moving up to middleweight to fight Gennady Golovkin to coming back down to face one of the most dangerous welterweights out there. All I want to do is give the fans what they want - that's what they deserve."
Khan, a former world champion at light-welterweight, will be an interested spectator as Brook welcomes mandatory challenger Spence Jr to his home city of Sheffield next week.
Negotiations to pit Brook against Khan fell apart in January, leading the IBF welterweight title-holder to accept a fight against Spence Jr instead.
