Pedzisa mutsara unotevera: Czerkawski wekutanga mutambo wepasi rose nechikwata chePoland chepasi pemakore gumi nemasere aive pa1989 European U18 Division BC Championship, kwaakanyora mapoinzi gumi nerimwe mumitambo mishanu uye akabatsira Poland kuwana kukwidziridzwa padanho repamusoro ra1990. Achibatanidzwa nechikwata mumutambo we1990, aive nemapoinzi gumi nemaviri mumitambo mitanhatu. Akatambawo kuPoland pa1990 World Junior Championship, achiwana chinangwa chimwe mumitambo minomwe. Poland yakadzikiswa kuBoka B (chikamu chechipiri) che1991, uko Czerkawski aive nezvinangwa gumi nezviviri uye 3 anobatsira, kwemapoinzi gumi nemashanu, mumitambo minomwe. Akaitawo kutanga kwake kwechikwata chevakuru chePoland gore iro, achitamba muBund B ku
1991 World Championships uye vakawana 8 mapoinzi mumitambo 7 uye vakabatsira Poland kuwana kukwidziridzwa kumusoro tier kwegore rinotevera.