Tottenham talisman Mousa Dembele fears his Belgium international team-mate Romelu Lukaku could be the man to wreck his side's Champions League dream when they face West Brom.
The 19-year-old joined the Baggies on loan in August 2012 and has since racked up 22 first-team appearances for the Midlands club, hitting the back of the net 9 times in the process.