Kawasaki Frontale striker Kazuki Ganaha said Thursday he plans to file an appeal to an arbitration panel seeking nullification of the punishment the J. League imposed on him for violating its anti-doping code. "I haven't done anything against the spirit of soccer," said Ganaha, who was handed a six-match ban for receiving an intravenous injection from the club doctor after a practice session in April. "I want to prove what the truth is so I can continue with my career proudly in front of my family and supporters," added the 27-year-old.