The knockdown.

[Trainer Monkey]

Good job he got knocked down.

He went to the doctor and got himself checked.
Turns out he's got a problem with his kidneys.

Donny - Guess it shows your instincts were correct about something not being quite right.

Hey - I guess it does!

He won't ever be able to box competitively, but fair play to him, he's still coming to the gym and blasting through the workouts

My first instinct is to say hydrate the hell out of him,but I dont know if his kidneys can take it