Blue stadium ticket stub for Southampton FC match

Found a blue, single-entry Southampton FC home match ticket this afternoon, around 3:15pm, outside the Portsmouth Guildhall on Guildhall Square in Hampshire. It's a Ticketmaster print with a black QR code in the lower-right and shows Row B, Seat 24 in Block A. There's a small coffee stain along the bottom edge and a creased corner from being tucked in a pocket. If the owner recognizes it, I’d be glad to return it through the app.