Matthew Upson was blown away by the work of both David Raya and Gabriel Martinelli for the chance Bukayo Saka missed in the early stages against Liverpool on Sunday. There was an electric atmosphere inside the Emirates for the clash between two of the Premier League’s best teams. And it was Arsenal who seemed to settle quickest. Certainly, Bukayo Saka should have put Arsenal 1-0 up a few minutes before he did indeed find the back of the net. Some smart work from David Raya set Gabriel Martinelli on his way down the left-hand side. Gabriel Martinelli praised after Bukayo Saka missed great chanc…