keep the updates coming, dodgy sky links not working here

It was a multi-faceted decision. Onside/offside, the challenge in the air, how the ball came free and finally the grounding. Ultimately I felt Smith was most concerned and spent the most time on the eventual grounding and for the reason I gave earlier.

Smith has been our best video official IMO and it's usually possible to track the thought processes he goes through to come to the usually correct decision.

Edit: Silverwood asked for a ruling on the challenge and grounding.

Replays:

1 - Onside/Offside
2 - Onside/Offside
3 - Challenge and initial view of Grounding
4 - Challenge and initial view of Grounding
5 - Challenge
6 - Challenge and Grounding
7 - Grounding
8 - Challenge (although presumably satisfied at this point) and Grounding
9 - Grounding
10 - Grounding

TRY

Smith always strikes me as a very good video official. I thought there was one angle where there was some hint of daylight between Moon's hand and the ball on grounding.

If he's not certain, then I have no problem with him looking for as long as wants until he is.