Frances Tiafoe, United States, def. Yannick Maden, Germany, 7-6 (7), 6-3.
Pablo Cuevas (8), Uruguay, def. Hugo Dellien, Bolivia, 6-4, 6-3.
Guido Pella (5), Argentina, def. Kwon Soon Woo, South Korea, 7-5, 7-5.
Gilles Simon, France, def. Jo-Wilfried Tsonga (6), France, 6-4, 7-5.
Stan Wawrinka (4), Switzerland, def. Feliciano Lopez, Spain, 6-7 (4), 6-4, 7-6 (4).
Rajeev Ram, United States, and Joe Salisbury (2), Britain, def. Denys Molchanov, Ukraine, and Andrei Vasilevski, Belarus, 7-5, 6-4.
Paolo Lorenzi and Jannik Sinner, Italy, def. Jurgen Melzer and Oliver Marach (3), Austria, 6-3, 6-1.
Sander Gille and Joran Vliegen (4), Belgium, def. Frederik Nielsen, Denmark, and Tim Puetz, Germany, 6-3, 4-6, 10-7.
Guido Pella and Diego Schwartzman, Argentina, def. Jonathan Erlich, Israel, and Artem Sitak, New Zealand, 7-5, 2-6, 10-7.
Kevin Krawietz and Andreas Mies (1), Germany, def. Ruben Bemelmans and Kimmer Coppejans, Belgium, 6-3, 6-4.Wednesday
At Lotto Arena
Surface: Hardcourt indoor
ANTWERP, BELGIUM (AP) _ Results Wednesday from European Open at Lotto Arena (seedings in parentheses):
Round Of 32
Round Of 16
Round Of 16
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