Federer and Djokovic have played 47 times and 15 times in grand slams. That ties Djokovic-Nadal for most ever grand slam meetings. That should be enough head to

Federer and Djokovic have played 47 times and 15 times in grand slams. That ties Djokovic-Nadal for most ever grand slam meetings. That should be enough head to head to make a comparison.