 Radio Montecarlo, via Express Umukinyi wimbere ku ruhande mu mugwi wUbwongereza, Jadon Sancho wimyaka 18, yipfuza kuguma muri Borussia Dortmund, naho hari amakuru avuga ko uwo mukinyi wa kera wa Manchester City yoba yipfuza kugaruka mwihiganwa rya Premier League. 