Former Germany captain Lothar Matthäus has ruled out a return to coaching after more than a decade when German and European clubs will be seeking new helmsmen in summer. “I’m very busy, I’m travelling a lot. My diary is full, I’m so happy with my life because I can control it a bit myself,” Matthäus told dpa. The 63-year-old said his life can be stressful “but if I want to take a four-day holiday, no club or association can say to me: ‘Hey, we’ve got training tomorrow morning. “It’s a pleasant situation for me to be able to decide on my own time off,” Matthäus said. Matthäus is mainly known as…