Atlas and Poseidon commend each other's power, being quite humble, and because they're also quite powerful. They both shake hands before fighting, and they step back, preparing for the bell to ring.
As it does so, both Atlas and Poseidon charge at each other immediately, Spending no time in trying to eliminate the other. Their fists, imbued with water magic, clash, and the power emitted is quite intense, but finally, Poseidon pushes Atlas back, as he punches him in the face, wanting to finish the match with no more then three hits.
As Atlas is about to fall of the ring, he uses his water magic to grip the ground, as it holds him back from falling. As soon as he regains his senses, though, Poseidon is already in front of him, preparing to actually knock him back this time.