Mainz defender Maxim Leitsch is out indefinitely due to exhaustion, the Bundesliga club said on Wednesday. “He is suffering from physical and mental exhaustion, which is potentially the side effect of recently overcome illness,” Mainz said in a statement. Mainz said that the 24-year-old Leitsch, who arrived in summer from Bochum, “can only partake in light training” and “will undergo further medical tests and physicals.”