"There was a lot of interest. Yet WBA is an ideal club where he can evolve. Moreover, it is important that Romelu can keep playing in the Premier League," said Christophe Henrotay.
"The boy had two seasons of European football with Anderlecht. A year on the bench was not an option. This is the best move for all parties.
"Of course, Chelsea counts on Lukaku. They'll continue to monitor and evaluate him after the season."