3rd. Rounds 1 and 2 can often be a bit of cat and mouse until the cat decides it's enough playing and goes in for the kill.
Round 5! By this time each fighter has got into gear and now are either planning to go the distance or go for the hail mary KO punch. You can also determine each fighter's stamina and if they are going to make it till the end with anything left in the tank. If , "IF" was a "5th"many fighters would tightened up their defense by that round.
Round 1 where the fighters are let loose and are feeling each other up. Then Andre Ward goes in for a quick hug followed up by some gentle hand touching.