The Bundesliga club's general manager has revealed an agreement that will see the 22-year-old move to Stamford Bridge, with Kevin De Bruyne heading the other way on loan.
The Blues have been trailing the Germany international for some time, though recent reports have suggested Borussia Dortmund's interest in signing De Bruyne permanently might scupper any potential deal. Earlier this month, De Bruyne, who spent the last season on loan with Werder Bremen, fanned the flames of speculation by admitting he would be open to joining Jurgen Klopp's Champions League finalists, who are looking to replace the departed Mario Gotze.
But Holzhauser insists the terms of the deal with Leverkusen for the transfer of Schurrle have been agreed upon, and he expects Chelsea to honor its word.
"We have an agreement with Chelsea," Holzhauser told RP. "They buy Schurrle for a set transfer fee and we get De Bruyne on loan for free for one season. I expect Chelsea to adhere to what has been agreed."
Following Leverkusen's 1-0 victory over Hamburg on the final day of the Bundesliga season, Schurrle revealed he believed he had played his last game for the club. He'll be part of the German national team contingent that will face the U.S. national team on Sunday. De Bruyne played a large role in Belgium's 4-2 victory over the USA Wednesday, assisting on two goals.