Hearts defender Andy Webster feels the fans and former manager John McGlynn will deserve huge credit if they win the Scottish Communities League Cup.
McGlynn lost his job late last month after four consecutive defeats, despite leading Hearts to the Hampden clash with St Mirren.
And the club might not be alive had supporters not raised more than £1million through a share purchase after Hearts were hit with a winding-up order over a tax debt in November.
First-team coach Gary Locke will lead the club at Hampden after guiding the team to four points from their last two Clydesdale Bank Premier League games, but Webster still refers to McGlynn as the manager ahead of a permanent appointment.
Webster said: "The fundamentals for the whole season have been laid by the manager. So from that point of view we have a responsibility there as players to make sure we are doing it for ourselves, we are doing it for the team, we are doing it for the club, the fans and obviously the manager.
"It will be a fitting tribute to the fans. They had a massive rally-round at the tail end of last year and hopefully on Sunday we can repay them by winning.
"It's a great occasion and a great place for the fans to come and be involved."