OK, I know I saw JaiLai at the MGM, never at Ballys in 1975. The arena was in the back section beyond what was a single tower hotel (east end). There were ONE or TWO players to a side and the arena was fully enclosed with GLASS (I THINK?). The object (I think?) was to catch a ball passed from player to player using a scoop like LaCrosse does (?) and prevent a score into a net. It was not very popular at the MGM, a South American game. I saw it two or three times. the athletes were in excellent condition and it was fast paced but not appreciated by the American crowd (small) at the MGM.