Substitutions and Karma: 14 Thoughts on Sunderland 1 Arsenal 2

At half-time in this game, I have to admit that I was struggling to think about what I would write in my post-match report. However, and thankfully, the game came alive in the second-half, and will probably live long in the memory of Arsenal fans for years to come. My thoughts as follows:

* As I said, it didn't look like it was shaping up to be a classic in the first-half.