A Football League spokesman said:
“With ticket sales for Saturday’s Sky Bet Championship Play-Off Final having now ceased, it has been confirmed that a number of tickets from Hull City’s allocation have remained unsold meaning that there will be empty spaces in the crowd.“As with previous matches at Wembley, it isn’t always possible to make all of one club’s unsold tickets available to fans of their opponent, as the stadium’s safety certificate requires supporters to be separated at the turnstiles and on the concourses, as well as in the stadium bowl itself.
“Throughout the week, the League, Hull City and Wembley Stadium have explored all options in order to make some additional tickets available to Sheffield Wednesday supporters. As a result, a number of tickets were provided to Wednesday fans through a ballot organised by the club.”