Federer, Nadal and more bid farewell to Ferrer

Feliciano Lopez:

Rafael Nadal:

And many more. The former world No. 3 won 27 career ATP titles, reached the French Open final in in 2013 and helped Spain win the Davis Cup in 2008, 2009, and 2011.

After nearly two decades on tour, the 37-year-old will begin his final Madrid campaign against fellow Spaniard Roberto Bautista Agut on Tuesday.

David Ferrer's farewell tour ends this week in Madrid. It's a fitting place for the Spaniard to officially say goodbye to all his fans and friends. His friends are taking the time to say goodbye, too.

Madrid tournament organizers helped arrange a sendoff with the hashtag "#GraciasFerru".

Juan Martin del Potro took part:

As did Fernando Verdasco:

Roger Federer:

Feliciano Lopez:

Rafael Nadal:

And many more. The former world No. 3 won 27 career ATP titles, reached the French Open final in in 2013 and helped Spain win the Davis Cup in 2008, 2009, and 2011.

After nearly two decades on tour, the 37-year-old will begin his final Madrid campaign against fellow Spaniard Roberto Bautista Agut on Tuesday.