Roger Federer

* winning 15 grand slams...more than any other

*21 semi finals in a row. There are only 4 grand slams a year. gotta be fittest for five big years. that too without losing rythm and top form.

*reaching in the final of wimbledon for seven straight years. even (so called ) sampras-the wimbledon king couldnt do it .

*Winning the French Open beside other three majors. many great players couldnt do that except bjon borg. there are some others like agassi, laver who did that but bjon borg was lil extra.

*winning 5 US Open in a row. no one has done it. closest competitor was Lendl who appeared in 8 straight US open final but could make only 2 out of it.

* Playing 16 in last 17 grand slam finals.

*and so on n on n on

So how could any other player be the GOAT (greatest of all time) in the tennis history?