Under what conditions "Spartak" will redeem Shyurlle from "Borussia"

Director general Moscow "Spartak" Tsorn Thomas told about as far as the German halfback rented at Dortmund "Borussia" Schurrle Andre Shyurlle fitted into game model "red-white" and sounded conditions under which it contract can be redeemed by Muscovites, reports Prosports.kz with reference to sport TV channel "Match TV"...