Roger Federer wrote a touching tribute to Rafael Nadal ahead of his final tennis tournament at the Davis Cup in Spain.

Roger Federer says Rafael Nadal made him enjoy tennis “even more” during a rivalry that spanned 40 matches over 15 years. Writing on social media Tuesday, hours before the start of the Davis Cup Final 8,

Federer was the first to reach 20 Grand Slam titles by winning the 2018 Australian Open, which was the last Major title of his legendary career. The former Swiss champion was the most loved player by fans in every corner of the planet and his impact on the sport is unparalleled.