Honestly, I've never heard of such a thing. It's a tackle for loss, obviously, but I don't think it should be a sack as Hunter isn't a QB. Not that it's the official source for anything, but the wikipedia page is for "sacking a QB", and never mentions the ability to sack any other position. I can't think of this ever happening before, but please anyone tell me if it has.
Definitely a sack, since Hunter was definitely back there to pass. A tackle for a loss would only be if it was clear he was not intentionally going back to pass, which clearly he was here.
Any sack is automatically credited as a tackle for loss, as well as any other tackle behind the line of scrimmage. As for the above poster saying "deal with it", he must not have read the entire first post where I said this had nothing to do with my game. This was the deciding factor in a game between two other teams. It ended up resulting the game in a tie, which sucks for both of them (though I guess better than a loss). I guess my understanding of a sack was that it would only apply to the fist man receiving the snap (normally the QB, but at times a RB/WR in a "wildcat package" when he's looking to throw). I thought that once a handoff or toss had occurred (meaning a 2nd man is in possession of the ball after the snap), that a sack couldn't occur.
I went a little deeper and looked into the official NFL rulebook, and found that the term "sack" isn't defined anywhere. In fact, the term is only mentioned one time in the entire rulebook, in regards to a "sack dance" which could result in a 15 yard unsportsmanlike conduct penalty. Again, I'll bring up the wiki article about a sack, as it's at this point the only place I can find a definition for it (though I completely understand it's not official in any way)...
"In
American football and Canadian football, a
sack occurs when the quarterback is tackled behind the line of scrimmage before he can throw a forward pass, or when the
quarterback is tackled behind the line of scrimmage in the "pocket" and the intent of what he was going to do is unclear. This often occurs if the opposing team's defensive line, linebackers or defensive backs are able to quickly get past blocking players of the offensive team (the quarterback's protection),
or if the quarterback is unable to find a back to hand the ball off to or an available eligible receiver (including wide receivers, running backs and tight ends) to catch the ball, allowing the defense a longer opportunity to
tackle the quarterback."
The bolded sections clearly only mention a quarterback, not other players. Also, it says that one occurs if the quarterback is unable to find a back to hand the ball off to, which Kaepernick clearly did on this play.
Again, this ruling does not involve my team in any way, and I'm just posting the question here that was posted by one of the involved teams from my league in this dispute. As the current result is a tie, I'm fine with it as it's like half a loss for both teams, but I was curious as to how others view this. Can you sack a non-QB, and even if you can, should our league award points for "sacking a QB" for that play?