ROTTERDAM, Netherlands, Feb. 16 (UPI) -- Juan Martin del Potro fought past Karol Beck Thursday to reach the quarterfinals of the ABN AMRO World Tennis Tournament in the Netherlands.
Del Potro, seeded third, came out a 6-4, 7-5 winner over Beck. Del Potro dropped serve twice in the first set but didn't see a break point in the second when he lost just six points in six service games.