Arsenal are now at risk of losing a record-breaking academy talent to Bayern Munich and European clubs in a free transfer due to the Football Association’s contract rules. The Hale End production line has produced a wealth of future stars over the years, including Bukayo Saka and Emile Smith Rowe. But Arsenal face a fight to keep their next wonderkid in north London as the FA’s rules leave them exposed to European teams exploiting a loophole. English clubs cannot give players a professional contract until their 17th birthday. It also saw Ethan Nwaneri only commit his future to Arsenal this Mar…