METZ, France — Lucas Pouille clinched his first career title on Sunday, beating top-seeded Dominic Thiem of Austria 7-6 (5), 6-2 to win the Moselle Open final. The third-seeded Frenchman, a U.S. Open quarterfinalist earlier this month, clipped a neat volley for match point and then hit an ace down the middle. The 22-year-old Pouille
