Theo Janssen is a football coach. Theo Janssen is currently associated with De Treffers. Theo Janssen's Sportra profile includes coaching career history, trophy record, sideline information where available, and related football news. Follow Theo Janssen's career path, recent appointments, and club context through the dedicated coach hub on Sportra. On Sportra you can view Theo Janssen coaching career history, honours, sideline updates, and related news.