One of the fans, who will watch the match between Bulgaria's teams of Levski and Litex at the stadium on May 27, will receive a BGN 25,000 prize after winning a special game.
Several fans, chosen by a lot, will be given the opportunity to score a goal from the centre of the ground. The first competitor, who manage to fulfil the task, will get the prize.
The prize is given by Levski's sponsor, the mobile operator Mtel, on the occasion of the team's 25th premier league title.
Levski became the new old champion after winning the game against Lokomotiv Sofia in the last but one round of this year's championship.