Jannik Sinner has secured his berth in the Miami Open semi-finals for the second time in his career.
The 21-year-old Italian player eased past Emil Ruusuvuori 6-3 6-1 in 1 hour and 15 minutes despite that the clash between the pair was impacted by a two-hour rain delay.
He dropped only one point on his first serve on Wednesday but maintained his perfect record in Miami, having not dropped a set.
"We both played well today but I won the important points," Sinner said.
"It's never easy when you are up and you get interrupted, but I came back and played well."
The 10th seed will face either world number one Carlos Alcaraz or American Taylor Fritz in the last four.
Alcaraz and Fritz's quarter-final encounter was postponed to Thursday as a result of persistent rain which forced the evening session in Florida to be cancelled.