Romelu Lukaku joined a team during 2011.
Chelsea Football Club ( [ ˈtʃɛlsiː ] ) is an English professional football club based in Fulham , London , that competes in the Premier League , of which they are reigning champions . Romelu Lukaku . In the 2011 summer transfer window , Lukaku joined Premier League club Chelsea . Lukaku made his senior international debut for Belgium in 2010 , and has since earned over 50 caps .