The Serie A club's chief Franco Soldati has insisted that a deal has yet to be agreed between the two clubs but it is thought that he will not stand in the Chilean's way
The deal will be based on a €3 million (£2.6m) per annum contract, but Soldati insists it does not mean a move is finalised as the two clubs have yet to agree a fee. Nonetheless, Udinese will not stand in Sanchez's way as he seeks a move to the European champions.
"From what we were told by the player's agent Fernando Felicevich, Alexis Sanchez has an agreement with Barcelona for a contract worth €3m a season. This does not necessarily mean he will go, but it is what the player wants," Soldati said, according to Chilean source La Tercera.
"We hope to fulfil the player's wish, but I don't think negotiations will be finalised until at least the end of June."
Udinese have set their price for Sanchez, in excess of £26m, and the attacker will not move unless Barca match the club's valuation.
"Sanchez's yes [to Barcelona] does not mean a yes from Udinese," he disclosed.
"These are two different things. We will begin talks with Barcelona and we will not stop them from speaking with the player. But we are just starting with the talks.
"If they pay us what we want then there will be no problems, but we are yet to speak about this. For the moment Barcelona are favourites to land Sanchez ahead of Juventus and Inter. These are the three clubs that are close to him, but nothing has been sealed yet in regards to a move.
"Again, this is just the start of things, but we want to finish negotiations by the end of the month. The player's opinion obviously counts, but there are other things we need to look at.
"In any case we are optimistic all will end well."