Oud-Heverlee Leuven have signed midfielder Xavier Mercier from Club Brugge.
Oud-Heverlee Leuven manager Vincent Euvrard is targeting immediate promotion to the top flight.
Oud-Heverlee Leuven striker Yannis Mbombo has signed a new one-year contract with the option of a further year.
Leuven head coach Vincent Euvrard and football adviser Frank Vercauteren have signed three-year contracts with the club.
Seventeen-year-old defender Louis Patris has signed his first professional contract with Oud-Heverlee Leuven.
Midfielder Aboubakar Keita has joined Oud-Heverlee Leuven on a permanent basis.