Ajax have blundered in not registering Sebastien Haller for their Europa League squad.

The signing from West Ham has scored two goals and delivered four assists in just seven games for Ajax.

However, his name was missing from the list submitted to UEFA by Ajax.

"It's true that Haller is not on the list of players for the Europa League. We are working with the KNVB and UEFA to find out what went wrong, " said a spokesman for Ajax last night.