While watching the French Open final this past weekend and watching Fed change racquets each game before new balls came out I started to wonder about this. For example, what would be the lifecycle of Fed's racquets throughout the course of a 2 week long tournament? If he changes out sticks every 6 games, every match, what happens to the racquets after they've been used? Do they get re-strung and wrapped for their next match, or are they done for match use and go to the practice bag? I'm curious. Anyone have any idea? My apologies if this has been discussed before and I have missed it.