Del Potro dominates to reach last eight

Top seed and defending champion Juan Martin Del Potro marched into the quarter-finals of the Estoril Open in Portugal today with a 6-1 6-0, 62-minute demolition of home hope Rui Machado.

The Argentinian former US Open champion broke his opponent five times in total to set up a last-eight clash with another former champion, Spaniard Albert Montanes, who beat American Bobby Reynolds 4-6 6-4 6-3.