New England Patriots fans will never forget this one.

In my opinion it's more about "situational awareness" more than anything else.

How often have we seen a fumble caused by guys trying for an extra 1 yard when they should have just gone to the ground. How many times have we seen QB's get stripped by not knowing where the defenders were.

Brady lost possession while in the process of attempting to tuck it back into his body after his arm was moving forward for a pass, and per the rule above that's not a fumble.

The Patriots would win their first of four Super Bowls that season.