5 longest Grand Slam tennis matches in history

#4 Wimbledon 2006 - Mark Knowles and Daniel Nestor def. Simon Aspelin and Todd Perry - 6 hours 9 minutes

Till-date, this is the longest doubles Grand Slam match in history. Mark Knowles and Daniel Nestor came out on top in a riveting encounter against Simon Aspelin and Todd Perry in six hours and nine minutes in a match which lasted over two days.

Knowles and Nestor found themselves 2 sets to one down, however, they clawed their way back into the match by winning the fourth set 6-3. The final set went on serve right until the very end.

Result: Mark Knowles and Daniel Nestor def. Simon Aspelin and Todd Perry 5–7, 6-3, 6–7(5–7), 6–3, 23–21 - 6 hours and 9 minutes