The Premier League summer transfer window opened just after midnight GMT on Thursday, and it promises to be a busy summer for all of the leading clubs. Who will arrive and who will leave before the 2019-20 season kicks off on Aug. 10?
We point out the players whose will-they, won’t-they transfer sagas could drag on until the final minutes of the window.
— Transfer window: When does it open and close?
— Grades: Tracking every big summer signing
David De Gea
The Spain No. 1 is stalling on a new…