Top seed Wawrinka falls in Miami Open
Top seed Stan Wawrinka was eliminated from the Miami Open on his 32nd birthday, losing 4-6, 6-2, 6-1 to teenager Alexander Zverev.
Roger Federer and Rafael Nadal advanced to the quarterfinals, as did No. 2 seed Kei Nishikori.
No. 2 seed Karolina Pliskova reached the semifinals, beating 26th-seeded Mirjana Lucic-Baroni 6-3, 6-4.