The Barcelona goalkeeper is currently locked in talks with the European champions over a new contract, with just 12 months remaining on his current deal.
Recent reports had suggested that United had made a move for Valdes - but agent Gines Carvajal has stressed that his charge is committed to Barca.
"We don't have any offers and nor are we going to listen to any, wherever they come from, because Victor has a year left on his contract and he owes it to Barcelona," he told Catalan radio station RAC 1.
"We don't want to listen to anything which will distract us from the idea of renewing at Barcelona.
"Our desire is that the situation sorts itself out. As we still have a lot of time, that's where we are."
Carvajal did admit that the two parties were still struggling to agree terms.
"It's complicated, there are differences, because if there weren't then we would have already renewed," he continued.
"Our desire is to continue negotiating. On our part, we are not breaking up any talks and Barca have not told me that they are either."