Result: Juan Martin del Potro through to Madrid Open semi-finals

Juan Martin Del Potro
© PA Photos
Juan Martin del Potro will face either Fernando Verdasco or Tomas Berdych in the Madrid Open semi-finals after beating Alexandr Dolgopolov in straight sets.

Juan Martin del Potro has advanced to the semi-finals of the Madrid Open with a comfortable 6-3 6-4 victory over Alexandr Dolgopolov.

Both players started strongly, with Del Potro serving powerfully while his opponent produced a stunning lob to prevent the Argentine from breaking.

It wasn't long though until the former US Open champion stamped his authority on the match by breaking the Ukrainian in the fourth game.

Dolgopolov fought back with a break of his own but Del Potro immediately regained control by winning two straight games to take the first set.

Just the one break of serve would decide the second, with the world number 11 displaying his greater experience against an opponent who was playing in only his second Masters quarter-final.

That made the score 3-2 and from then on it was routine for Del Potro, who wrapped up victory in an hour and a half.

He will face either Fernando Verdasco or Tomas Berdych in the last four.

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