Milan, Aug 9 (LaPresse) – A smooth debut for Jannik Sinner at the Cincinnati ATP, the seventh Masters 1000 event of the season. The world number one defeated Colombian Daniel Galan (ranked 134) with a score of 6-1, 6-1 in just 59 minutes of play. Sinner will face the winner of the match between Baez and Diallo in the third round. A bitter start instead for Musetti, who was defeated by French player Bonzi in three sets 7-5, 6-4, 7-6.