I agree that the yellow card could have been given earlier, in theory, but I do think that the unusually long time that the Sharks spent defending their tryline complicated matters for the ref: Yes the Sharks did concede several penalties in the 'red-zone' but it was not as if they were all in rapid succession. There was quite a gap in time between successive penalties. I'm not saying this is a knock-down argument in favour of withholding the yellow card, but I can see how it could impinge on the ref's thinking. »