Chris Sandow has improved his defence 10 fold from two seasons ago... He still does miss a few tackles but now it is usually just down to being overpowered not from a lack of effort, he is only an ant.
In the past he was honestly just woeful, didn't put any heart in, his technique was dreadful and his reading of attacking movement was just horrid.
Some others who used to give me nightmares over the years at Parra include Ben Roberts, Tim Smith and of course and I can't believe he hasn't got a mention yet Eric 'stay on your wing' Grothe Jrn.