Sasso half tried this combination off the opening whistle. BTN was slow to switch over so we only see the second half, but sasso ducks to his left to then chains to single leg to his right. It's important because I've seen enough "lucky pin" from the wrestling world so I'll correct it. Brent made adjustments based on the opening whistle.

Shot 1 is as close as I could get to the handfight setup. Sasso is elevating his right elbow to create space to move into and to draw a response from Moore. Look at how upright sasso gets to try and get this response from Brent. On the far (left) side sasso has the elbow he's going to use to get into his duck position.

Shot 2 shows the beginning of the attack. Sasso has released his right arm. Notice at this point Brent still does not have his left arm under to defend. We can see sassos knees buckling forward to change levels. This is important because like the shot off the initial whistle he expects to have the room to his left (far side of the photo) to move into. Brent takes it away.

Shot 3 a lot has changed. The biggest thing to note is the change in Brent's stance. Instead of retreating like he did on the opening whistle, Moore feeds hips and moves to his right effectively cutting off sassos exit. Brent's weight and center of gravity are directly over sassos knees. Now look at sassos center of gravity, over his heels with his knees forward. No where else to go but backwards. The subtle shift of Brent's hips to his right make it easier to thread his left arm into a defensive underhook. And we can actually see the pose as Brent uses his right arm to secure sassos left. Without it, sasso likely get pushed back but it's simply a TD or even a scramble. This is ridiculously high level wrestling from Moore.

Shot 4 is the big finisher. Since sasso can't defy the laws of physics, he begins to rotate to his back. At this point Moore has also secured the far arm and calmy settles into place.

A beautiful sequence