ranked djokovic at the u.s. open on sunday. the last to win a calendar grand slam was back in 1969. of course, that was rod laver. patrick snell joins us more of what has been a fantastic weekend of tennis. what a show both men put on today. >> absolutely. you're quite right. the historic women's side of things and now, huge, huge for the 25-year-old from moscow. medvedev, the huge grand slam for him. and here's what's really significant. it shattered the history making hopes and aspirations. it was surprisingly straightforward. djokovic failing to hit the heights. helping to raise money for his 2019 to rafael nadal. it was a magnificent display