Schurrle is a top summer target for Chelsea.
Leverkusen boss Sami Hyypia is reluctant to let Schurrle leave: "Every coach wants to keep the best players of his team.
"We will certainly try and keep him. Andre has shown how important he is for us.
"If he performs like against Dusseldorf [where he scored a brace in Leverkusen's 4-1 last weekend], this would be very good."