Um why should they be allowed to hold? Its against the rules. I dont' think Mayweather should be allowed to use his forarm to make space. Why? Because its against the rules. Hatton should learn to fight on the inside like Duran would would put his arms in there to control his opponent, but he wouldn't hold them. Watching Mayweather dance around the ring is more exciting than watching Hatton miss a hook or jab coming in, and then holding and doing ineffective work on the inside.