INDIAN WELLS, March 14 ― Spain's Carlos Alcaraz held off tenacious Tallon Griekspoor 7-6 (7/4), 6-3 yesterday to reach the fourth round at Indian Wells, where a third ATP Masters 1000 title will see him return to number one in the world rankings.

Alcaraz, 19, had a tough time breaking through against his determined Dutch foe, who had won their only prior hard court meeting.

He didn't face a break point in the first set, but nor could he convert either of his two.

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A strong start in the tiebreaker, which saw him take a 5-2 lead with a service winner, proved the difference, Alcaraz locking up the set with a forehand winner on his second set point.

He rolled from there, breaking Griekspoor in the second game on the way to a 3-0 lead in the second set.

Griekspoor saved a match point in the penultimate game, but after falling behind 0-30 in a nervy final game Alcaraz won four straight points, finishing it off when Griekspoor sent a forehand wide.

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Once again Alcaraz showed no sign of the right hamstring strain he suffered on the way to the final last month in Rio de Janeiro ― a week after he'd won the ATP title in Buenos Aires.

Last year's US Open winner had missed the Australian Open with a similar injury. ― AFP