I do Judo and like to watch football, and recently had two ideas relating the two.
First is probably easier to handle, as it may be answerable by someone with a copy of NFL rules. (It seems that the NFL rulebook is not online, true?) The question concerns the actions of a defensive player (most likely a cornerback). As I understand the rules, a defensive player may not hold and offensive player. I want to know if "holding " is defined to mean with one’s hand . Also, tripping is illegal. Does the leg that is accused of doing the tripping have to be on the ground, or does any action of a defensive player’s leg that impedes an offensive constitue tripping?
What I had in mind is this: There is a throw in judo called kani basami. Here is a diagram of the throw, and here is a picture of throw
If a defensive player were to do this to a wide receiver, would it be a penalty? Whether or not it would be possible or practicable is not the question.
I will ask about the practicality of the second item: a “leg-grip” tackle. One often sees missed tackles where a player attempts to grab an opponent, and his grip comes off, or is pushed off by the offensive player. In Judo, and Brazilian Jiu Jitsu there is a position known as “the guard” in BJJ and ??? in Judo (I can’t find it’s name right now in my Judo books. It is less important in Judo… for reasons I won’t go into now). It involves grabbing around your opponents waist with your legs when you are lying on your back. In regards to football my question is this: Could it ever be a good move to attempt to tackle the ball carrier by grabbing on to him with your hands and then jumping to scissor his waist with your legs and hang on with them also. I believe this is contrary to usual tackling theory which would indicate to keep your legs on the ground to power a drive into the opponent and just wrap with the arms. I believe that this “Judo tackle” might be called for when a tackler has no teamates near enough to help and he must stop a touchdown. There are probably a lot of players that could continue to run with a (< 200 lb.) defensive back clinging to them, but it would slow them down, perhaps enough for a teammate to make a complete tackle. By grabbing with both hands and legs, there might be a lesser possibilty of missing the tackle, or being straight-armed off by the ball carrier, and thus it might be useful in cases where a “higher-probablility tackle that results in more yardage gained” is called for.
What think ye?