Well, for starters, the stadium has strict rules to ensure everyone's safety, and that includes what you can and can't bring inside. Think of it like trying to get into a super-exclusive nightclub - you gotta follow the dress code, and in this case, the bag code!
So, what are the rules? In a nutshell, small bags are allowed, but they need to be no larger than A4 size. Yep, that's roughly the size of a standard piece of paper! If you're planning to bring a bigger bag, you might want to consider leaving it at home or in your car, unless you want to risk being turned away at the door.
Now, you might be wondering, what about my essentials? Don't worry, you can still bring the important stuff like your phone, wallet, and snacks - just make sure they fit into a small bag or a clear plastic bag. It's like packing a beach bag for a day out, but instead of sunscreen and towels, you're bringing your football gear!