Federer, Nadal reach Miami semis, Wawrinka falls

Mar 28, 2017; Miami, FL, USA; Roger Federer of Switzerland hits a forehand against Roberto Bautista Agut of Spain (not pictured) on day eight of the 2017 Miami Open at Crandon Park Tennis Center. Mandatory Credit: Geoff Burke-USA TODAY Sports

(Reuters) - Roger Federer survived a stern test from Spain's Roberto Bautista Agut to reach the Miami Open quarter-finals on Tuesday, while top-seeded Swiss compatriot Stan Wawrinka was eliminated on his birthday.

Federer clinched the 7-6(5) 7-6(4) victory on his third match point, shortly after Wawrinka fell 4-6 6-2 6-1 to 16th-seeded German teenager Alexander Zverev.