But Lookman struggled to make an impact in the Bundesliga since making his switch permanent, featuring on just 11 occasions in the league last term.
RB Leipzig finished third in the Bundesliga last season, qualifying automatically for the Champions League group stages
Born in London, Lookman began his career at Charlton before moving to Everton in the 2017 January Transfer Window.
Lookman has featured throughout the age groups at youth team level for England, making 11 appearances for the U21s.