These athletes will age and finally retire, and the record books will record that the Irish fighter ended with a perfect three wins from three against the Puerto Rican. That bare statistic reveals nothing of the closeness or true controversies or the mutual respect contained within these encounters. It was a lofty sports rivalry.

Katie Taylor retained her undisputed world super lightweight title after edging her trilogy fight against Amanda Serrano in New York

Amanda Serrano was graceful following a historic night at Madison Square Garden in which she came up short in her trilogy fight with Katie Taylor for the undisputed super lightweight championship.