Novak Djokovic has beaten Stanislas Wawrinka in straight sets to reach the Cincinnati Open semi-finals for the fifth time.
The world number one will face either Tomas Berdych or Alexandr Dolgopolov for a place in the final.
There was little to separate the two players during a cagey opening set, but Djokovic was able to break at 4-4 before serving it out 6-4.
Wawrinka faded dramatically in the second, allowing Djokovic to capitalise and take a commanding 4-0 lead. From there the Serbian had little trouble sealing a 6-4 6-1 win with just over an hour on the clock.
The event in Cincinnati is the only Masters 1000 title that Djokovic has failed to win during his career.
Written by
Jack Prescott
Jack Prescott
