English Premier League football club Swansea City has threatened to penalise supporters after tickets paid for by the players were found on online resale sites.

The club’s captain, Leon Britton, initiated the idea of the first team buying the full allocation of away seats for this weekend’s must-win game at Sunderland and hand out the 3,000 tickets to fans for free. It was hoped the initiative would ensure a strong Swansea following at the Stadium of Light (pictured) as the club fight relegation.

Club officials confirmed that “a few dozen” tickets had been seen on the secondary market for more than £60 (€71/$78) each.

A Swansea spokesman said: “We are extremely disappointed that any supporter would sell a ticket paid for by the players themselves.

“Not only would we warn supporters about getting tickets from these sites, which are often not guaranteed, but any supporter found selling their ticket (for this game) runs the risk of having their season ticket and club membership revoked.”

According to the Sun newspaper, the players collectively paid £75,000, with the entire allocation selling out.

After beating Everton 1-0 last week, Swansea are one point and one position above the relegation zone. The club’s two remaining games are the away trip to Sunderland and a home fixture against West Bromwich Albion.