I have to sound a note of caution here. Rams do not normally play with anything, other than when they're lambs practising fighting to the death, which they will do once the breeding season kicks in. A sheep is a flock animal and should not be kept without others of its kind. Equines and sheep sometimes get along but I've heard many, many stories of sheep getting kicked, picked up by the horse and thrown down, etc. Sheep need their own kit, vetmeds, feed and so on, as well as worming, foot trimming, shearing, pour on, etc., etc.