World number one Nadal had yet to drop a single set in Melbourne this year, but 22nd seed Dimitrov rightly fancied his chances of ending the Spaniard's run of extreme dominance.
The pair had met on three previous occasions and, although Nadal had won all three, he had never beaten the Bulgarian in straight sets.
Would Nadal reach his fourth Australian Open semi-final, or would Dimitrov progress to the last four of a Grand Slam for the first time ever?
Find out how the action unfolded below with Sports Mole's blow-by-blow text updates.
Total points won
Nadal: 32/36 (89%)
Dimitrov: 28/41 (68%)
Receiving points won
Nadal: 59/155 (38%)
Dimitrov: 36/124 (29%)