First infringement rule is in play - How can you take someone off the ball when the ball is dead?
edit- rules of advantage 2013
The advantage law applies to all phases of play, but where a
team infringes in a strong tactical position the advantage
should be allowed only if the ball goes immediately into the
possession of the non-offending team.
The Referee is the sole judge of what constitutes an
advantage be it tactical or territorial. An infringement is not
‘negated’ simply because the ball touches or is touched by
an opponent. The opponent must have adequate
opportunity to take advantage and endeavour to do so
before play is allowed to proceed.
Application of the advantage laws does not deprive the
Referee of subsequently dealing with an offending player
Klein made a couple of mistakes in this play, firstly Nightingale is allowed to play at Hodges because he had been in possession of the football, it isn't Gregs fault Hodges knocked on,
There is no such thing as a major infringement and infringements aren't rated they either are or aren't infringements.