2018 English League Cup Final

But again is that the rule or your interpretation of it? To me he's in the eye-line of the goalie and between him and the defender. Arsenal have a legitimate claim there. 

I don't think it mattered anyway as City would've more than likely got the second sooner or later. 

The linesmen need to help refs more on decisions like this as it's impossible for a ref to know every factor in contentious goals like that. 

The old* rule was quite clear in principle (if not always in practice**) in that it was NOT enough to be in an offside position in order to be offside: you ALSO had to be either (actively) interfering with play or seeking to gain an advantage ('goal-hanging' usually).

Otherwise every time Stan Matthews skinned his full back on the outside and sent in a cross from out by the corner flag, he would have offside from the moment Stan Mortenson connected with the cross and headed it towards the goal. But since he was no longer interfering, or in a position to gain any advantage, he wasn't.

Anyhow, the rule has since been amended to "gaining an advantage" (rather than "seeking to") and also to incorporate "interfering with an opponent" as a third means of converting "being in an offside position" to "being offside":

* - By "old", I assume you mean the original rule.

** - Interpreting what "interfering", or even "seeking an advantage" means is not always clear; nonetheless the principle remains, one or other had to exist, alongside the offside positioning, for a player to be deemed to be "offside".

 

Thought it was a lot more clear cut from the original rule. Fair enough. 

Regarding Sane's positioning for the second goal, would that not be considered 'goal-hanging' in the old rule?

Given your definition, under the new rules, what could Sane be in breach of? Legitimate goal under the new rules but not under the old rules?