Arsenal iracari mu biganiro n'umurwi Celtic kugira ngo ishobore kugura umukinyi w'inyuma ku ruhande rw'ibubamfu, Kieran Tierney, inyuma y'aho uwo murwi wankiye igiciro kigira kabiri c'imiliyoni 25 z'amapawundi yari yatanze.
