His fear or concern forced him to call out two sugar packets as an illegal enchancer able to be taken that night and be outta your system by the end of the fight. Him clamoring for Tony to be tested right before the fight instead of after proves why random up to the night of the fight testing would be more sufficiant than a week cut off date. There's no way they can go back to the 7 day cut off when Roach just threw a fit over something that would be outta Margo's system within mere hours.
No Dumbass. Margarito was caught drinking something illegal tonight that's why roach demanded such a thing.