West Bromwich Albion boss Steve Clarke admits he fears losing Romelu Lukaku back to Chelsea in January.
Lukaku struck the winner against Reading yesterday.
Clarke said: "Lukaku is here on a season-long loan but I would imagine there is a recall clause in the agreement.
"Any Premier League team who does a season-long loan usually has a January release clause.
"There's no point in worrying about things I can't affect. I'm just looking for Romelu to continue the fine form he's shown for us and score a few more goals.
"If he scores 20 goals by Christmas and Chelsea want him back there's nothing I can do about it.
"He had a number of clubs he could have gone to, we're just thankful he's come here to the Albion."