Delray Beach results

Following are Tuesday's results at the Delray Beach Open tennis tournament (prefix number denotes seeding):

First round

7-Steve Johnson, United States, bt Mikhail Kukushkin, Kazakhstan, 6-3, 4-1, retired

Bernard Tomic, Australia, bt Malek Jaziri, Tunisia, 6-3, 6-3

Andrey Rublev, Russia, bt Dudi Sela, Israel, 6-4, 1-6, 6-3

8-Viktor Troicki, Serbia, bt Stephane Robert, France, 6-7 (3-7), 7-5, 6-1

Thanasi Kokkinakis, Australia, bt Filip Krajinovic, Serbia, 6-2, 6-3

Alejandro Gonzalez, Colombia, bt 6-Sam Querrey, United States, 3-6, 2-1, retired

5-Adrian Mannarino, France, bt Eric Quigley, United States, 6-4, 6-4

Yoshihito Nishioka, Japan, bt Igor Sijsling, Netherlands, 7-5, 6-1

Tim Smyczek, United States, bt Stefan Kozlov, United States, 7-5, 6-2

Donald Young, United States, bt Ivan Dodig, Croatia, 7-5, 7-5

Lu Yen-Hsun, Chinese Taipei, bt Sam Groth, Australia, 6-7 (6-8), 7-6 (7-5), 6-4

Endi