Belgian attacking midfielder Mathieu Maertens, 31, will leave OH Leuven after his contract expires. OH Leuven will not extend his contract. Maertens played for OH Leuven for nine seasons, joining from Cercle Brugge in 2017. In recent seasons, Maertens played less due to injuries and recently mainly had a substitute role. His current market value is €900k, according to Transfermarkt.