If you're a football fanatic and have kept tickets from every match you've been to, you may want to start checking the dates. 

As there's a chance that one of those tickets could be worth a lot of money with new research by OnBuy Treadmills discovering which are the most valuable. 

The ten most valuable tickets were discovered by identifying the most famous football legends and seeing which tickets for their matches gained the most profit. 

From Cristiano Ronaldo's professional debut in 2002 to Pelé's 1958 FIFA World Cup matches, the value of some of these tickets may surprise and you might be in luck. 

Find out the most valuable football tickets. 

Swanage and Wareham Voice: Find out which ticket are most valuable. (Canva) Find out which ticket are most valuable. (Canva)

Most value football tickets revealed: 

1. 2002 CRISTIANO RONALDO -  Professional Debut ticket SPORTING v INTER MILAN Worth: £10,980

2. 1958 Pelé WC debut - FIFA World Cup ticket #21 1/8 Finals Brazil vs Soviet 2-0. Worth: £10,658

3. 1958 Pelé WC debut - World Cup Ticket - Brazil v Soviet Union 2-0. Worth: £10,000

4. 2003 Lionel Messi - FC Porto VS Barcelona TICKET STUB Debut PSA 5 EX RARE LOW POP. Worth: £9,135

5. 1958 Pelé WC debut - FIFA World Cup ticket #21 1/8 Finals Brazil vs Soviet 2-0. Worth: £8,526

6. 1958 Pele WC Debut - World Cup Sweden Stub Brazil 21 Rookie Soccer Ticket PSA 1.5. Worth: £ 7,552

7. 1958 Pelé WC debut - FIFA World Cup ticket #21 1/8 Finals Brazil vs Soviet 2-0. Worth: £6,673

8. 1992 David Beckham Debut - Ticket Manchester United V Brighton And Hove Albion. Worth: £6,000

9. 2003 Ticket debut MESSI ROOKIE Estádio do Dragão 16-11-2003 FC Porto vs Barcelona. Worth: £4,944

10. 1958 FIFA World Cup ticket #32 Finals Brazil vs Sweden, Pelé WC goals #5-6. Worth: £3,083