Thank you Novak for again stopping Federer from winning #18. Rafa has struggled this year, and Novak will most likely when this year's US open. But next year as usual, Novak will struggle after peaking this season and Rafa will comeback stronger as he always does after a weak season. Rafa will make a run for the all-time slam record. Federer will continue playing until he knows his record is safe. He knows that Rafa is going to be back strong and that 17 isn't enough.