Arsenal were well in front from the first moments of the match, and aside from a chance here and there, Sunderland put up very little resistance and the three points were obtained with very little trouble. The only concern from the game: Koscielny and Nacho Monreal both leaving with possible injuries. Hopefully both were simple precautions, as neither was really needed with the scoreline as it was.
The first three goals were all quite good. The first came from a very good team play, ending with a Jack Wilshere pass (with about five Sunderland defenders on him) to a wide-open Giroud for a good finish. Giroud's work on the second was even better - he read a faulty backpass as it happened and finished brilliantly as Poor Vito Mannone came out to try to salvage things. Seriously, the finish was amazing.
The real peach was the third, though. It evoked the previous Goal Of The Season against Norwich City, and actually may have been an even better goal. All one-touch play, ending with Rosicky and Giroud playing a give and go in the box to put the former in position to chip Poor Mannone for a brilliant all-around goal.
Koscielny's was a free header off a corner, and Giaccherini got a late consolation goal for Sunderland after the game was essentially over. All in all, a good match, an encouraging performance after a few rough games, and if the "injuries" aren't Injuries, really we couldn't ask for a lot more.