Germany coach Hansi Flick has the luxury problem of an all but full and a very determined squad to chose from for Saturday’s Nations League opener in Italy. The only player missing is forward Marco Reus who is back in individual training after an infection and set to join the training camp in Bavaria on the weekend, Flick said. Reus could then feature in the next game against England on Tuesday in Munich. The other 25 underwent a final training session Friday before an afternoon departure for Bologna, where the game is played, and Flick liked what he saw in the session. “I could see today that…