Just on this Roberts thing...he seems to have a bit of an odd style on the field...kinda doesn't 'look' particularly effective and even awkward at times, so I try to watch the results of all of this. He is a constant threat when running the football, his footwork often beats defenders, and attracts a number of others, which creates space for his outside men. Plays off the cuff a lot I think, but without too many terrible results (eg: Gidley at times). Would be fantastic at touch footy I reckon (having been watching some Shaun Johnson videos lately haha)
Pretty sure his defence is pretty good for a 19/20 year old as I think Stone has mentioned it at least once or twice (and doesn't seem to miss too many tackles as RHCP well pointed out).
As for todays game - if you're in Newcastle right now and umming and ahhing about the weather, get your arse down to Sydney! Will be just some high cloud down there (which may very well clear off to the east by around sunset, letting some brief sunshine in)