Former Aston Villa striker Gabby Agbonlahor has sparked a debate by declaring the Old Firm derby between Celtic and Rangers as the fiercest rivalry in Britain. Agbonlahor relegated the highly anticipated North London derby between Arsenal and Tottenham to sixth place in his top five list, stating that it no longer carries the same intensity. According to the talkSPORT host, the Rangers-Celtic rivalry is fueled by intense emotions and a deep-rooted dislike between the two teams.