Roger Federer and Rafael Nadal played on a specially-made floating court to mark the start of the tennis calender. The exhibition match on the submerged court took place in Doha Bay Sunday, Qatar, to promote the Qatar Open.

Federer has also taken part in such odd events before, including the match against Andre Agassi on a helipad. Regardless of passed experiences, the floating court must be one of Federer's most memorable. Check out the floating court for the Qatar Open in the attached video.