The 22-year-old German international has been heavily linked with a move away from the Bundesliga in the summer, despite the fact he is under contract at the BayArena until 2016.
Schurrle's impressive performances has prompted admiring glances from a host of different clubs around Europe, but Hyppia is confident that the player will not be distracted by transfer speculation between now and the end of the season.
"Every coach wants to retain his best players," he is quoted saying by Voetbal Primeur. "It would be great if he [Schurrle] stays.
"I cannot look into his head, but I hope he is only concentrating on playing and training."
Chelsea's attempts to lure Schurrle to Stamford Bridge were confirmed by Bayer Leverkusen's sporting director Rudi Voller earlier this week, with Roman Abramovich keen to strengthen his forward line with a player that has netted nine goals in 28 appearances in Germany's top-flight this season.
And, according to German newspaper Bild, the Blues are prepared to part with £12million and also offer Belgian winger Kevin de Bruyne - who has impressed on loan at Werder Bremen this season - to try and sweeten the deal that could see Schurrle arrive in west London ahead of the 2013/14 campaign.