Credit: Youtube
Dubai, Feb 26 (IANS) World number one Novak Djokovic retired from the Dubai Tennis Championships due to eye problem.
The Serb withdrew on Thursday after losing the first set of a quarter-final match against Spain's Feliciano Lopez, Xinhua news agency reported.
The last time the Serb retired during a match was against Argentina's Juan Martin del Potro in the 2011 Davis Cup.
World number four Stan Wawrinka of Switzerland won Thursday his quarterfinal match against Germany's Kohlschreiber, 7-5, 6-1.
Kohlschreiber, ranked 34, never really challenged Wawrinka as the Swiss scored seven aces during the encounter.
In other matches, Marcos Baghdatis won 7-5, 6-0 against Roberto Bautista Agut from Spain, while Australia's Nick Kyrgios defeated Tomas Berdych from Czech Republic 6-4, 6-4.
