Pietro Grassi has qualified for the quarter-finals of the International Tournament under 16 in Mestre (Tennis Europe Grade 3 - clay). The young Titan, seeded No. 1, defeated in the second round Nicola Ronzoni, against whom he had lost in singles a week ago in the regional final team. 6-4 6-2 the score in favor of Grassi, that tomorrow will be chasing the first semi-final season, defying Daniel Iamunno.