Despite their intense rivalry at club level, former Real Madrid and Spain captain Ramos took to social media to honour Busquets.
"Busi [Busquets], you are the definition of how to be exceptional while remaining an ordinary guy," Ramos wrote on his Instagram post. "A rival most of the time, a teammate many times over, you have always stood out for your class, vision, and quality of football, and for your humble and authentic nature. Football is losing one of the most brilliant midfielders I've ever played with, but you leave with the recognition and gratitude of all who have been with you and all who love this sport.
"Thank you for being a great player, a great teammate, and a great friend. I wish you the best for your new journey."