Novak Djokovic and Rafael Nadal's epic Australian Open final
In a gladiatorial war of attrition, the then-top two players in the world slugged away for a mind-boggling 5 hours and 53 minutes — the longest Grand Slam final ever. The tennis wasn't always pretty (you try playing for almost six hours straight!), but the lengthy rallies, their incredible defense and pure fight to win were electrifying. In the end, Djokovic prevailed for his fifth Grand Slam title and his seventh consecutive victory over Nadal — and both were so spent that they were doubled over
during the trophy presentation and chairs had to be brought out.