INDIAN WELLS, California – Seventh seed Andy Roddick powered his way past Spaniard Tommy Robredo 6-3 7-5 to reach the semi-finals of the Indian Wells ATP tournament on Friday for a fourth time.

The big-serving American broke the 18th-seeded Robredo in the 11th game of the second set before holding serve to seal victory in 78 minutes.

Roddick booked his place in the last four when the Spaniard hit a forehand long and will next meet either Andy Murray of Britain or Swede Robin Soderling.

Holder Rafael Nadal and 20th-seeded Croatian Ivan Ljubicic reached the semi-finals from the other half of the draw with victories on Thursday.

Roddick, appearing in his fifth ATP Tour quarter-final of the year, broke Robredo in the eighth game of the match to sweep through the opening set in 34 minutes.

The second set went with serve until the 11th game when the Spaniard was again broken and the American made no mistake in closing out the match in the 12th.

Roddick, who won his 28th ATP title in Brisbane in January, outplayed his opponent with his all-round power game, firing down six aces and hitting 19 winners in searing afternoon heat in the California desert.

Fourth seed Murray was scheduled to play sixth-seeded Soderling later on Friday.