Manchester United were willing to sign Bayern Munich star Thomas Muller at any cost this summer, according to player agent Giovanni Branchini.

The Red Devils reportedly tabled an offer of £71million in an attempt to lure the 26-year-old to Old Trafford, but the German champions managed to hang onto the World Cup winner.

However, Munich's decision to keep Muller wasn't down to a lack of effort from United, with Branchini telling Italian publication Calciomercato the Red Devils were willing to do whatever it took to land the forward.

"Manchester United wanted Thomas Muller at all costs," Branchini said.

"I've spent days trying to explain Bayern Munich would never let him leave - so in the end they changed their mind."