Quartey... Chavez gives a reasonably spirited effort for 3 or 4 rounds and then gives up, gets beat on for a few more rounds while his corner tries to tell him to do it for Mexico or whatever and eventually he says "fuck it' and quits
If Chavez had had success at 154 and 160, in doing so, he would've demonstrated he had the size to compete there. In this case, 147, proved too heavy for Chavez. Quartey drstroys him like he did Phillips, another guy who didn't belong at ww.