What's really funny about that movie is that everyone says the issue that causes the time warp was because he sustained an injury. What know one, not one single critic or person noticed is that it's the guy he never captured twenty years ago, who inflicts the injury - you have to be paying attention to why the cop stops (to see why there's a vehicle on the bridge, not moving, with no one in the driver's seat. It doesn't pay off until the end of the film so I guess no one remembers - I did.