Reports have been circulating on the internet that Miguel Vazquez has refused to sign to fight the 29-year-old Coatbridge boxer in a unification bout at Wembley Arena next month.
The Mexican is reportedly unhappy with certain conditions set down in the pre-fight contract and is demanding clarification before putting pen to paper.
But Warren is adamant that the bout will go ahead as planned, regardless of the 26-year-old IBF champion's feelings.
According to a spokesman for the London fight boss, terms have been agreed and details finalised for the March 16 showdown.
The spokesman insisted yesterday: "Vazquez's manger has signed the contracts and it's all systems go.
"Contrary to these reports, there isn't a problem and there never has been. These erroneous reports have now been removed from the various boxing websites that were circulating them."
Meanwhile, Burns is said to be in tip-top condition for his eighth world title bout and is punching harder than ever in training, according to his manager, Alex Morrison.
Morrison added: "Ricky is looking good and raring to go in what will undoubtedly be one of the toughest fights he has faced. I fully expect him to become a dual champion."
Burns was shattered when his planned defence, against Filipino Jose Ocampo, scheduled to have taken place in London in December, was called off at the last minute.