While fans and pundits continue to debate who should be considered the greatest men’s tennis player of all time, 23-times Grand Slam winner Serena Williams says Roger Federer gets her vote.
Rafael Nadal picked up a record-extending 13th French Open title in October to join Federer at the top of the list of men’s Grand Slam winners with 20 titles, while world No. 1 Novak Djokovic, the youngest of the ‘Big Three’ at 33, is on 18.