I agree, in my opinion Sedo parking is a very good tool for earning from unused domains.How much traffic you receive?
You can use Sedo parking or Afternic parking pages to monetize traffic, or you could develop relating content site/blog and monetize from many monetization methods:
- ad placements (direct or through the network)
- subscription mode (pay to view the content)
- reselling: since domain has some relationship with football team, try to resell tickets