Boxing promotors for Pacquiao and Floyd Mayweather have continued talks in hopes of reviving a mega-fight that has been scuttled by disagreements over unprecedented blood tests.
But no progress has been made in securing a deal to stage the welterweight fight which could be the richest fight in boxing history.
Mayweather wanted random blood tests at any point before the March 13 fight but Pacquiao said such tests too near the bout would weaken him.
Mayweather promotor Richard Schaefer says his camp was willing to compromise as long as a cut-off date on random blood tests could be agreed upon.
Pacquiao had offered a blood test in January, another 30 days before the fight and a third after the bout but that does not appease Mayweather.
Schaefer says 30 days before is not effective.
