a HOT ball, you can use them to FIX draws
thats more of a UEFA/FIFA situation where they use their own HEAD-HONCHOS to pick draws.
ATP will have a player rep doing the draw so it cant happen (unless its Roddick or Agsssi)
have one hot ball in each pot, so when picking out a ball from each pot(which contains 2 balls) they will know.
then the organisers can have their ideal draw just as they want.