Andy Murray has moved into the third round of the Cincinnati Open after a straight-sets victory over David Nalbandian.
In a first set which saw both players struggle to hold serve, it was the world number four who eventually won 6-4.
While the world number 66 continued to have difficulties with his serve in the second set, Murray hit his stride and dispatched the Argentinian 6-1.
The Scot will face American Alex Bogomolov Jr. in the third round.