You also might want to check out
www.scrum.com but you have to search the game. I also recommend looking at the others mentioned here as a comparision. You will get different results for the same player. Just a caution. That's why I stick to team stuff, less subjective.
Yes, I've noted the differences between sites. I think if I want to do this correctly I'll have to make a video clip showing a player's involvements myself. The player I was thinking of is John Smit. I've rewatched the game now and he is nowhere near as bad as people make out. He is not a dynamic hooker, but his work rate is higher than several other forwards, yet these other forwards are not called "slow fat lumbering oafs". It's why I think bias always clouds a person's view, I know it does cloud mine sometimes. Once there are enough loud voices complaining about a player everything becomes murky and it becomes difficult to view his play subjectively.
Just a few quick examples, stuff I've seen mentioned elsewhere.
1) OST 06:40. Smit carries the ball, takes the very obvious point of contact (as unfortunately does every South African forward), but his support (#3 and #5) are ineffective at cleaning out and he has to release, turnover, Cooper steps inside one, cover defense can't get there, try the other end. Smit gets the blame but it was not his mistake.
2) OST 09:38. Genia breaks blind, #3 (Kruger I think) is inside but too slow to react. Smit must take the outside man but Kruger can't even get to Genia, breaks, try. Smit gets the blame. To be fair, perhaps Smit could have come in on Genia forcing the offload and taking one person out the equation, but really the defensive structure was wrong, why two tight forwards defending such a large blindside? Not Smit's fault, but he gets the blame, pretty sure some sites would count it as his missed tackle.
3) OST 13:20. Smit does miss a tackle he should have made. Slips off. However, no-one mentions the three men (#6, #8, #4) who also slipped the tackle on the same player seconds before.