Ajax blunder as 'computer glitch' leaves record signing Haller out of Europa League squad

Ajax coach Erik ten Hag frustrated after admin gaffe

Ajax manager Erik Ten Hag says it is "unbelievably annoying" that "an administrative error" meant the club failed to register club-record signing Sebastien Haller in their Europa League squad for the knock-out stages. 

Ajax will try everything possible to have record signing Sebastien Haller available for the Europa League knockout rounds after failing to register the Ivory Coast international, coach Erik ten Hag said today.

But he conceded an administrative error will likely cost the club a vital player in their bid to win the trophy, blaming a computer glitch for leaving the 26-year-old French-born striker off the additions to the squad for the rest of the competition.