Tyson Fury has announced that the second fight of his comeback will be against Francesco Pianeta on August 18.
Fury spent the opening stages of his return fight showboating to the crowd before his opponent was pulled out of the contest after four rounds, handing Fury the win.
"The ideal for us in Belfast would be to get some worthwhile rounds into Tyson," Warren wrote on his official website.
"I don't believe we will have him playing up to the crowd on this occasion because he will need to be more business-like in a riskier fight and also because of his desire to start putting a marker down once again in the heavyweight division.
"Tyson informs me that he has shifted a bit more weight since his first return and this fight is about continuing to nudge him towards optimum fitness, which is where he needs to be before he is really stepped up."
Fury remains unbeaten in his career, with a record of 26 wins from 26 fights.