Federer, Tyson, Woods, Ali, Nadal: Sport's 20 greatest ever rivalries
Roger Federer announced his retirement from tennis this week and the sporting world has had something in its eye ever since.
Players.bio is a large online platform sharing the best live coverage of your favourite sports: Football, Golf, Rugby, Cricket, F1, Boxing, NFL, NBA, plus the latest sports news, transfers & scores. Exclusive interviews, fresh photos and videos, breaking news. Stay tuned to know everything you wish about your favorite stars 24/7. Check our daily updates and make sure you don't miss anything about celebrities' lives.

Roger Federer announced his retirement from tennis this week and the sporting world has had something in its eye ever since.
Ric Flair is one of the most iconic WWE wrestlers of all time and Mike Tyson is one of the biggest stars boxing has ever had, so them coming together was only ever going to be golden.
Anthony Joshua has “always been overrated but he can bring in big money.”
Ahead of the postponed title match between Claressa Shields and Savannah Marshall, we have taken a look at some of the biggest rivalries in boxing history.
Mike Tyson has seemingly forgiven Dana White for securing him three rounds with 30 sharks.
American great Serena Williams said she is looking forward to life beyond tennis after her dreams of a fairytale 24th Grand Slam win at the US Open ended in defeat on Friday night.
Boxing legend Mike Tyson battered Peter McNeeley in less than 90 seconds of his 1995 comeback fight after serving three years in prison.
Boxing fans always have debates on who is the greatest boxer of all time, the undefeated Floyd Mayweather? The relentless Manny Pacquiao? There’s an abundance of modern day greats in the game to narrow down.