Controversy brews over supplement

ARLINGTON, Texas -- Controversy erupted Saturday night before Manny Pacquiao and Antonio Margarito even got in the ring.

A weight loss supplement was seen in Margarito's dressing room before the fight, and Pacquiao's team demanded that he be tested before the fight for possible banned substances. Texas officials, though, said the testing would be done after the fight as usual.

The weight loss supplement was reportedly Hydroxycut, sold over the counter.

Margarito struggled to lose the last few pounds this week to make the 150-pound contract weight for the fight.