By Adrian Warren

The day of reckoning has finally arrived for Anthony Mundine and Shane Mosley, as both attempt to turn back the clock with a vintage performance to ensure they remain genuine world boxing title contenders.

At 38 and 42 respectively, neither Mundine nor American great Mosley are at their peak, but both remain convinced a win at Sydney's Allphones Arena on Wednesday night will set them up for at least one more big fight.

For Mundine, the dream is a crack at supremely gifted WBA super welterweight Floyd Mayweather, indisputably the world's best pound for pound boxer.

While many pundits dismiss the idea, Mundine as the 10th ranked WBA contender is at least eligible for a potential title shot.

A win over Mosley would deliver the WBA International super welterweight title and surely raise his ranking and stocks, though he might still have to beat another highly-rated boxers to convince top fighters that he would be a worthy opponent.

Dismissing Mosley on the basis of age would be both disrespectful and dangerous.

Antonio Tarver was also 42 when he bowled over Danny Green and Bernard Hopkins, at age 48, is still beating much younger fighters.

Three-division world champion Mosley is still top 10 rated by the WBC and WBA as a welterweight.

He boasts the incredible feat of never having been stopped or knocked out in almost 60 professional fights, in a career spanning just over 20 years.

Critics point to the fact he has won just one of his last five fights, but his losses over that period were to three of the most celebrated fighters of recent years, Mayweather, Manny Pacquiao and Saul Alvarez.

If anyone doubted Mosley's appetite or aptitude to fight, they should look at his last bout in May of this year.

He went to Mexico and outpointed current WBC top 10 rated Paulo Cesar Cano, a fighter 18 years his junior.