Nadal, 33, has been with Perello for 14 years, and they are childhood sweethearts.
The Spaniard has made an appearance in 28 Grand Slam finals, second only to Federer and Djokovic's record of 31 finals.
Players often blast missile groundstrokes into the corners, thinking they have earned a winner, only for Nadal to come sprinting out of nowhere and make an astonishing get.
Only Novak Djokovic has gotten off to better starts since 1990.
Then another break point for Nadal and this time he draws to the net and seals the game.
His biggest triumph came when he defeated the Argentinean, Mariano Puerta, in the French Open Finals.