Everything that happened in the Marg-Cotto fight leads me to believe Marg used the plaster then. The way Cotto's face ripped apart and swelled, the way the tide turned as the plaster finaly hardened,(remember the plaster was damp when he was caught) and the conversation in Margs corner between rounds when they were asking about his hands. I don't recall what round but it was the first half of the fight. Check it! THE CONVERSATION PUTS UP A BIG RED FLAG!