Mannarino & Thompson Advance in Mallorca
The World No. 42 saved all four break points that he faced and won 61 per cent (14/23) of his second-service points to advance at the new ATP 250 grass-court event in Spain.
Struff had beaten Russian Daniil Medvedev at the NOVENTI OPEN in Halle last week on home soil, but could not overcome Mannarino. The 32-year-old will play second-seeded Austrian Dominic Thiem in the second round.
The Australian, who is currently No. 81 in the FedEx ATP Rankings, hit 14 aces and saved a match point at 4-5 in the second set, and he will next face either Dusan Lajovic or qualifier, Lukas Klein in the second round.
Tennys Sandgren led Spaniard Jaume Munar 7-6(3), 2-1 before play was suspended for the evening because the court was slippery due to the humidity of the grass. The American, who was playing his first match of the season on grass, hit seven aces and saved the one break point he faced to claim the opening set.