It would be a real shame if Alexander had happened to be trying to close the gap between them. A real shame. Tanzo's move went off without a hitch, Brighton allowed him to catch his arm and grip as tight as he wished. It's not as though his grip would last very long, most people tend to lose their grip when they're caught unaware. 

Finally displaying his ambidextrous ability, Brighton whipped his left arm from around his back into a frighteningly quick jab towards Tanzo's diaphragm. One of the most devastating punches that one can deliver is to that part of your body which controls your breathing, it leaves you breathless and helpless. With a swift blow to his most vulnerable of areas, Tanzo would be left totally open to attack. 

Completely defenseless. 

However, what Tanzo doesn't know, is that the more immediately threatening attack is a feint. A distraction for the real attack. 

Knowing that Tanzo's left hand is occupied, and that his right hand would soon be occupied with catching the punch, Brighton had preemptively forced an opening in his foe's guard. See, most people forget about their lower halves while fighting. Most people just sort of throw their fists at eachother's faces and never stop to consider how they're able to reach eachother's faces. 

Without a sturdy pair of legs to hold oneself up on, one can't particularly punch someone else in the face. 

While winding up the swing towards Tanzo's chest, Brighton lifted up his right leg and brought it back halfway and swung it forward with force. Aiming the toe of his hard leather boots right for Tanzo's left ankle.  Angling his foot slightly so that it would catch right at the joint, aiming to knock his foot right out from under him. 

Now, back to the punch. I'm not saying that the punch is totally harmless and not aiming to deliver an actual blow. No, it's still quite a dangerous punch. The effect of which has already been described, but it is thrown with the expectation of failure. And doesn't have quite the same planned follow up as the kick.