Watford have asked season ticket holders to inform the club if they are unable to attend matches so they can try and ensure every seat is filled.

The idea is that if the club knows of any vacant seats at Vicarage Road, they are then able to re-sell the seats for that game, with profits going to the Watford FC Community Trust, or allocate them to "local good causes".

Furthermore, the club has said it will be initiating conversations with anyone who fails to notify the club of their non-attendance for two or more home fixtures.

In an email distributed to season ticket holders, the impact of a full stadium was highlighted, with the FA Cup quarter-final tie against Crystal Palace last season given as an example of the "tangible difference to the chances of winning a full stadium in fine voice can have."

The email comes in the wake of steps taken by the club over the past two seasons to clamp down on season ticket holders not attending matches.

In March this year, the club announced they would be collecting and analysing attendance data that would help them "reach the position where we will reserve the right to refuse renewals to those supporters who most regularly don’t attend AND don’t advise us of their non-attendance."

The latest communication from the club states: "A couple of years ago we wrote into the Season Ticket Ts & Cs an option for us to reserve the right not to offer renewal opportunities to ST holders with high non-attendance rates" and that "Come renewal time next Spring, we will be initiating conversations with those ST holders who fail to notify us of their non-attendance (or simply don't attend) for two or more home fixtures."

A number of concerns about the scheme from supporters were raised with the club, who declined to comment.