West Ham chief Karren Brady can see Alexis Sanchez leaving Arsenal this summer.
Brady wrote for The Sun: "The Chilean forward is demanding weekly gushers of money to stay.
"Manager Arsene Wenger says, if the worst came to the worst, he'd stick with Sanchez until his contract runs out next summer.
"But what of the likely £50million Arsenal will sacrifice by not selling fairly soon. That isn't Kroenke mathematics.
"If the player is determined to go, then in my experience he will."