The US golf association put a new rule (effective January 1, 2016) that prohibits players from anchoring their putters to their chests. Tim Clark, a golfer from South Africa, who has won ten championships, anchors to roll over and just accept this. We have put in a position where we have to fight for our livelihoods "Explain what source of law is involved. How can the rule be challenged? Where would the golfers go to court?