rule number 1.3 "Any World Boxing Federation World Champion must defend his/her title within nine (9) months, any WBF Intercontinental, International or Regional Champion must defend his/her title within six (6) months, otherwise the title may be declared vacant in the discretion of the World Boxing Federation"
ayon sa WBF Rules
He fought Maidana last 09-13-2014 he needs to defend that belt other wise it will be declared vacant , so May will be a great date for him he ( Mayweather ) still has a month to go to look for a boxer he fought for a small profit just to defend his belts
Bad for Manny coz he just fought last November , he will not have his enough time for a boot camp