The cache is not at the posted coordinates. Don't go there to look for it (especially on a Saturday afternoon when you'll be treated as a pitch invader and have over 60,000 people watching you being marched off by the stewards).
When you solve the puzzle you will see the final location is, however, very close to the stadium.
Liverpool FC (2013/14)
Leicester City (1925/26)
Middlesborough FC + Everton FC (1910/11)
Brighton & Hove Albion (2021/22)
Arsenal FC (1996/97)
Portsmouth FC (1933/34)
Burnley FC (2020/21)
Luton Town + Manchester City + Nottingham Forest + Watford FC (1982/83)
