Jannik Sinner cruised past Tomas Machac 6-4, 6-2 to reach the semi-finals of the Miami Open where the second seed will face the defending champion Daniil Medvedev. The first set of the match played in humid conditions hinged on a Machac service game at 3-3 where the unseeded Czech’s forehand missed its target on break point to give Sinner a 4-3 lead. The Italian wrapped up the set with a love hold when Machac was unable to put a second serve back in play. In the second set, Machac’s forehand sailed long to give Sinner the break and a 2-1 lead. Sinner broke again with a backhand winner for 4-1 and closed out the contest with a serve out wide that Machac could not get back.