It was nothing, not even a penalty. A clear case from Sinfield of the venal, creeping, soccer-like gamesmanship that is slowly infecting our game and carachterises the whole operating style of his dreadful club, it's coaching staff and ownership. It should have been a penalty to Wigan and Sinfield should have been sin-binned - this should also have been the case for the similar Oscar-winning dying swan act that Sinfield dredged up in response to another nothing challenge from Crosby later in the game.
The on-field antics of the whole Leeds team and in particular its more experienced players is a disgrace and an embarrassment to Rugby League - the appropriate response from the RFL is long overdue.
Of course, Saint Sam of Tomkins would never do anything like that, would he.
So obvious even Eddie called it out on Sky