Both Moises Caicedo and Romeo Lavia snubbed offers from Liverpool to join Chelsea and landed blows on the Reds’ transfer plans.
Jurgen Klopp is desperate for a defensive midfielder following the departures of Fabinho and Jordan Henderson earlier in the transfer window.
Liverpool now have a deal in place for Stuttgart captain Endo who has permission to travel to England.
According to German magazine Sport Bild, the midfielder flew into England on Wednesday night by private jet to complete the move.
He is expected to undergo a medical and sign a long-term contract with Liverpool later today to become their third new signing of the summer.
The Merseyside giants have agreed to pay a fee of €20m to Stuttgart and another €5m in add-ons.
Klopp personally spoke with the midfielder after Liverpool contacted Stuttgart for his signature earlier this week.
They have until Friday noon to complete the transfer and register the Japan international if they want him in the squad against Bournemouth on Saturday.