After Lorenzo Musetti , Matteo Berrettini was also eliminated from the Atp 1000 tournament in Miami .
The blue was beaten by the American Mackenzie McDonald with a double 7-6 after 2 hours and 18 minutes of play.
The 26-year-old Roman, who had won both previous challenges, nonetheless showed for long stretches a tennis match up to his ambitions.
For sure, it has shown clear progress since the last performance.