Eintracht Frankfurt left for a pre-season tour to North America on Monday as coach Dino Poppmöller questioned the professionalism of some of his players. Frankfurt will train in Louisville, Kentucky, until July 31 and then make a brief stop in New York before returning on August 2. Matches are planned for July 25 in Mexico’s Ciudad de Juárez against FC Juárez, and on July 30 in Louisville against Louisville City. “I’m really looking forward to it! A longer trip with the team always helps to bring us even closer together,’ goalkeeper Kevin Trapp said. Toppmöller will meanwhile keep an eye out o…