Ajax "mistakenly" omitted their record signing Sebastien Haller name from their Europa League squad

It's been gathered that Ajax have left their record signing Sebastien Haller out of their squad for the Europa League.

Recall that Haller completed the move to Ajax following a miserable spell at West Ham. 

As quoted by Goal, the club spokesman told ESPN: "It is indeed true that Haller is not on our Europa League list of players.

"We are working with the KNVB and UEFA to find out where things went wrong."