Arsenal boss Arsene Wenger cannot rule out selling Alexis Sanchez this month.
Manchester United are challenging Manchester City to sign the Chile international.
And Wenger has not denied Jose Mourinho is interested.
“I cannot say much more about the situation,” Wenger said on United’s interest.
“Nothing is concrete at the moment.
“I don’t want to give you wrong information. Nothing is decided.”
When asked about a potential bidding war between City and United, Wenger said: “It is always beneficial to the club who can take advantage.
“I maintain what I have said many times that he should stay until the end of the season. But we will see.”
Sanchez could end up choosing between Mourinho and Guardiola.
But on that possibility, Wenger said: “If I was a player, I would stay where I am with 100 percent commitment!”