That 2nd call was a dive. Rooney should have gotten a yellow. Man Citys goal was a great injustice imo. Im not sure who touched the ball last but when the pass originated Man City had at least 4 player off side maybe as many as 6. How is a goalie not interfered with when there are 4-6 players offside running at him as the pass comes in. Just out of sure instinct the linesman should have raised the flag.
They pulled that trick a couple of times, 4 - 5 players running offside while passing to an onside player, while those offside took care not to directly interfere with play, ...very clever, though as you say its bound top distract the keeper and defenders, but technically within the rules!
