New York: Argentine Juan del Potro had to toil hard against Ryan Harrison of America before advancing to the3rd round of the men’s singles event of the US Open last night.

Potro taking on the young American prevailed with his experience to win the match 6-2, 6-3, 2-6, 6-2.

Meanwhile, defending champion Novak Djokovic of Serbia beat 6-2, 6-1, 6-2 Rogerio Dutra Silva of Brazil.

In another match, David Ferrer’s 6-2, 6-3, 7-6 (12) beat Igor Sijsling of the Netherlands.

Other results:
A. Roddick bt B.Tomic 6-3, 6-4, 6-0

J. Tipsarevic Bt B. Baker 6-4, 6-3, 6-4 

S. Wawrinka bt S. Darcis 6-7, 6-3, 4-6, 6-1, 7-5

L. Hewitt bt G.Muller 3-6, 7-6, 6-5, 7-5, 6-4

A. Dolgopolov bt M. Baghdatis 6-4, 3-6, 6-0, 7-5

By Indian Sports News Network