clock stoppage NFL rules

[tball]

http://heavy.com/sports/2015/11/watch-sammy-watkins-ruled-in-bounds-controversial-call-bills-patriots-video-last-play-monday-night-football-mnf/

anyone know what the rule is? obviously if you watch the video, he was untouched, so shouldnt have been 'ruled down' when his ass hits the ground - that if he continues to go out of bounds, should stop the clock, right? no big deal

i guess, from perreira's reaction, that what im saying is correct - however, my question lies with general clock stoppage rules

in the middle of the game, guy catches and is contacted by defender whom corrals him then out of bounds, yet the clock continues to run - even though they weren't taken to the ground AND their momentum was going forward.

i might just be getting college and pro game rules mixed up - and if so, i apologize, however ive heard theres a rule that out of bounds doesnt stop the clock unless inside of last five minutes of 2nd half


found amidst NFL rules for game timing http://static.nfl.com/static/content/public/image/rulebook/pdfs/7_Rule4_Game_Timing.pdf

Scrimmage Down
Article 2
Following any timeout (3-36), the game clock shall be started on a scrimmage down when the ball is
next snapped, except in the following situations:
(a) Whenever a runner goes out of bounds on a play from scrimmage, the game clock is started when
an official spots the ball at the inbounds spot, and the Referee gives the signal to start the game
clock, except that the clock will start on the snap:
(1) after a change of possession;
(2) after the two-minute warning of the first half; or
(3) inside the last five minutes of the second half.


Section 4 Stopping the Game Clock
The game clock operator shall stop the game clock (timeout) upon a signal by any official or upon the
operator?s own positive knowledge:

(a) at the end of a down in which there is a free kick or fair-catch kick;
(b) when the kicking team recovers a scrimmage kick that has been touched by the receiving team beyond the line of scrimmage;
(c) when the ball is out of bounds;
(d) when the ball is dead on or behind a goal line;
(e) at the end of a down during which a foul occurs;
(f) when a forward pass is incomplete;
(g) when the player who originally takes the snap is tackled behind the line of scrimmage;

(g) when the player who originally takes the snap is tackled behind the line of scrimmage -

i dont understand which scenario this is, that they're referring to, in order for it to make sense (if qb is tackled behind the line of scrimmage, the clock operator is supposed to stop the clock???)


and additionally, that if a player goes out of bounds, in order for clock to stop, his momentum must be going forward, or lateral to sideline, not backwards, otherwise clock (if going backwards when out of bounds) will continue to run --- anyone know anything about this?


anyone know for sure the ruling with these scenarios or what the actual rules for clock stoppage is/are?

 

[tball]

http://www.sbnation.com/nfl/2015/11...ills-an-extra-play-at-the-end-of-monday-night

Getting forced out while going backward: Clock runs.
Going backward while not getting forced out: Clock stops