If Collazo decides to fight Hatton on the inside I think it will be a mistake. He should counterpunch and not get caught on the ropes. Hatton must be in top shape to track down Collazo and land plenty of body shots. Collazo is not a big puncher, so Hatton is sure to have the edge if they stand and trade power punches. Collazo's reach advantage of 7" (72" to 65") is serious. You don't need a PHD in physics to conclude that it makes sense for Collazo to fight primarily on the outside.