The classic question.
Rules: This is a fight in an arena, you are unarmed, you cannot leave the arena until every other animal is dead, and while the animals are as intelligent as normal they do understand that they’re fighting you and will try to do so, they won’t just run away.
Yeah, non-bird dinosaurs were like an amalgamation of reptiles and birds. I think sauropods were even theorized to use airsacs like pneumatic pumps to get blood to their head.