He needs to retire. There is something very obviously wrong with Lewis's back, legs or hips because he can't move very well. For some reason he is not able to move laterally to his left at all.
He never takes a step to the left, his left knee is always straight and the leg positioned awkwardly. He kept backing up into the cage with lots of room circle to his left but never away but he didn't attempt it once... At one point Waldo circled to his right, and Lewis pivoted on his left foot in a weird way as if it was a wooden leg, like he couldn't lift it to move it...
At one point Waldo caught his right leg after a body kick, and Lewis couldn't move his left leg to get keep balance so he just let himself drop straight down to the mat.
I am really surprised it's never been brought up before