The king of clay is also the king of heart.
Of all Rafael Nadal's monumental achievements, perhaps most impressive is the special bond he shares with his fans.
More: Djokovic Undecided on 2022 AO
So when a Nadal fan took to Twitter and asked if Rafa could send a happy birthday message to his special superfan—her grandfather on his 90th birthday—the 20-time Grand Slam champion answered the call. Nadal's memorable message prompts an unforgettable moment.
The result is quite touching as you can see in the video below. Watch the grandfather tear up seeing Nadal send him "a very big hug and wish him happy birthday and the best."
Posting a video of her grandfather's emotional reaction to Rafa's birthday, Twitter user Pilar Leon wrote: "Eternally grateful to Rafael Nadal and to all of you who have helped make his 90th birthday unforgettable. I hope you understand that I will leave the video in private. I show you his reaction."
Photo credit: Babolat