Former England captain Alan Shearer says it's too soon to say Arsenal are title contenders.
Shearer wrote for BBC Sport: "It's not time to talk about them as title contenders yet, but people now know that this is a different Arsenal to the team we saw just 13 months ago.
"The Gunners' 3-0 win at Brentford on Sunday epitomised their progress under Mikel Arteta, because we all remember what happened in this fixture on the opening weekend of last season - when the Bees didn't just beat them, they bullied them.
"Everything was different about Arsenal this time - in attack and defence, plus the way they controlled the game, and with their attitude and intensity. They ran out comfortable winners.
"This Gunners side is not only bigger and stronger, it is also more committed. They were better in every department and dominated right from the start."