Sheffield United season ticket holders are being given the chance to help the Blades last gasp scramble to beat the drop from the Championship.
With points and goals at a premium, United are hoping for an enhanced home following for the South Yorkshire Derby against Barnsley.
Season tickets holders can bring a friend by purchasing an extra ticket for just £3 for Saturday's home fixture.
Dave McCarthy, Sheffield United's head of operations, said: "After the victory at Reading, the fight to avoid relegation goes on. We all know it is going to be difficult but if the results go our way on Saturday and the fans can help us pick up a few more goals, then who knows what will happen on the final day of the season.
"Barnsley have sold out of their allocation and they come to the Lane in good voice, so the more Blades in the stadium getting right behind the Blades, the better."
United are only selling tickets in the home areas to fans already on the ticketing database. Tickets for this game are available in person or over the telephone on 0871 995 1889. Online sales have been suspended for this game due to segregation issues. General prices are adults from £22, concessions from £16 and Junior Blades from £5.