ATP Qatar Open results

Following are the results from the second day of the ATP Qatar Open at Doha on Tuesday (prefix number denotes seeding):

Men's singles first round

3-Tomas Berdych, Czech Republic, bt Denis Istomin, Uzbekistan, 6-1, 6-4

Blaz Kavcic, Slovenia, bt Juan Monaco, Argentina, 7-6 (7-3), 6-4

Sergiy Stakhovsky, Ukraine, bt Jabor Ali Mutawa, Qatar, 6-1, 6-1

1-Novak Djokovic, Serbia, bt Dusan Lajovic, Serbia, 6-2, 6-1

Nikoloz Basilashvili, Georgia, bt Mikhail Youzhny, Russia, 7-5,6-2

Michael Berrer, Germany, bt 2-Rafael Nadal, Spain, 1-6, 6-3, 6-4

Andreas Seppi, Italy, bt 8-Leonardo Mayer, Argentina, 5-7, 7-6 (7-4), 7-6 (7-4)

Jan-Lennard Struff, Germany, bt 5-Philipp Kohlschreiber, Germany, 7-6 (7-3), 4-6, 6-1

Joao Souza, Brazil, bt Malek Jaziri, Tunisia, 3-6, 6-4, 6-3

3-David Ferrer, Spain, bt Thiemo de Bakker, Netherlands, 6-7 (4-7), 6-4, 6-3

Endi