Richard Arnold, the head of United’s Mayfair-based commercial operation, has met senior figures from Adidas and representatives of Warrior. Discussions with Puma are also due to take place this week. With United recognised as the most powerful brand in world football, their success in securing a £53 million-a-year shirt sponsorship deal with Chevrolet, due to start this summer, has strengthened their prospects of dwarfing the kit deals of leading rivals such as Real Madrid and Barcelona.