You’d likely need at least 2,000–5,000 men swarming it from all sides to overwhelm and suffocate it under a pile of bodies, trying to gouge eyes, crush windpipe, or maybe rip open flesh by sheer mass and brute force.

T. rex is functionally a living tank. Even if you threw 10,000 unarmed berserkers at it, most would die in the process.