Manny Pacquiao's return to the ring at the weekend after a four-year hiatus marked the latest example of a boxer well past his prime who could not resist the temptation of the squared circle and a chance to add to his competitive legacy.

The 46-year-old Filipino came out of retirement on Saturday to fight Mario Barrios but fell short as the American escaped with a draw.

Mayweather, now 48, retired four months after beating Pacquiao and returned in 2017 to defeat UFC crossover star Conor McGregor to run his record to 50-0. Davis, meanwhile, is just 30 years old but is the same height as Pacquiao, would have only a negligible reach advantage and is promoted by the same Premier Boxing Champions apparatus.

Manny Pacquiao reclaims a spot in the welterweight rankings following a controversial return vs. Mario Barrios . Here are the latest ESPN divisional rankings.

The comeback sparked excitement across the boxing world, but perhaps no one felt the itch more than Amir Khan. The former world champ, who has been out of the spotlight himself, n