This is what puzzles me in various replies. How do the players know what the referee has decided if he does not signal (i.e. blows his whistle) to stop play? We all know that players are can be cautioned if they carry on playing after the whistle is blown. I was always taught to "play to the whistle" - no whistle - keep playing. Has this changed?
If things are getting taken to the nth degree, strip it back to the basics, that flag is a tool for the ar to use to inform the referee of something
Run of the mill, it be, ball out of play, and the direction the ar has judged the throw to go, however, the referee is not legally bound to accept this, of course a huge majority of the time its accepted, esp on ball out of play, but quite normal for referee to see flag point throw to blue, yet referee goes with white.
Ar likewise might see what they consider to be a foul, hopefully in an area credible for them to get involved. Whilst majority of time referee will accept the flag, he does not have to. Ref might say, no foul, play on. Might play an attacking team advantage.
the ar is there to offer assistance to the referee.
On the offside call, it sounds like the referee was simply delaying blowing up, and, waiting to see, can we play this on. ( in my experience its rare to see an actual advantage signal here). If offside attacking 9 is flagged, yet the ball runs to the feet of defending 5, 9 is not involved in the play, and 5 say has control of the ball, 9, providing from his offside position has not interferred with an opponent etc, 9, although maybe having been in an offside position, has not committed an offence by being there..
Defender seeing flag and picking ball up, unless the offside is really so muchHo not an offside, should result in a tuned in referee thinking on his feet and now blowing quickly, and accepting the offside.
Was a great clip locally last season of a high defensive line, say in line with the half way semi circle, attacking 9 being the furthest forward, ball got lobbed from the semi circle other half, in direction of 9, flag went up from AR.
However, it was entirely too early, 9 never moved, instead 10, who had been in his own half, ran onto the chipped ball. Ball ran thro to gk, who then, being aware flag had been up, walked the ball with his feet some 40 yards up the pitch, then picked it up, to set it up for what he thought waa the offside restarr!
Ref had of course waved flag down, ( there was no sound on the clip sp i dont know if ref shouted)
The referee then correctly penalised the gk for the handling offence.
My description of the incident is prob not great but point is, the flag is a signal from ar to ref.