Piotr Kosiorowski (born 5 January 1981) is a Polish former footballer. External links 1981 births People from Świdwin County Sportspeople from West Pomeranian Voivodeship Living people Polish footballers Association football midfielders Polonia Warsaw players Wisła Płock players Świt Nowy Dwór Mazowiecki players KSZO Ostrowiec Świętokrzyski players Ząbkovia Ząbki players Sandecja Nowy Sącz players MKP Pogoń Siedlce players Ekstraklasa players I liga players II liga players