"Right hook, roll under"

[Pugilistic]

One bit i really don't understand is when he says, "it justs mean he's got something to roll on too".

He isn't going to roll on to the left hook if he is rolling under it.

Hatton was talking about a right hook.

Hatton was talking about his left hook.

He felt if Pacquiao tried to right hook and roll under it he would be rolling onto a Hatton left hook but anyone with a brain would know the purpose of Pacquiao rolling is to roll under it which he did very well.