Fergie and Wenger always bring new meaning to the term 'biased', which must mean it works - ie, it makes refs more likely to favour them when making a decision. Wankers.
It shouldn't have been a corner. However, they had a goal disallowed shortly before, and I didn't see much wrong with it. And I'm not sure about the united penalty claim either, it came off his leg first, which made the following handball clearly accidental and unavoidable.