Romelu Lukaku started playing professional football in 2013.
Romelu Lukaku . Lukaku started his career with local side Rupel Boom , before joining Lierse , where he earned a move to Anderlecht of the Belgian Pro League in 2006 . Lukaku made his professional debut while still at school at the age of 16 , and became the 2009 -- 10 top scorer in Belgium as Anderlecht won the Belgian championship . In the 2011 summer transfer window , Lukaku joined Premier League club Chelsea .