What is erik tammer?

As an AI language model, I don't have access to personal information about individuals unless it is publicly available online. However, based on a search of available resources, Erik Tammer is a retired Dutch soccer player who played as a striker for various clubs such as FC Groningen, FC Twente, and Feyenoord Rotterdam during the 1980s and 1990s. Tammer also played for the Netherlands national team, earning one cap in 1995. After retiring from the sport, he worked as a coach for various clubs in the Netherlands and abroad.