Crossfit kills me every time I do it. This was today's workout: https://gyazo.com/7cc4687bd5d39e10415dcb442bd438eb
To explain, in wall balls you squat down and then push up, throwing a weighted ball against the wall, catching it and squatting again, etcetera. For "Annie", you do fifty double-unders (jump roping), fifty situps, forty double-unders, forty situps, etcetera.