David Raya
Commanded his area well. Relatively little to do before the break but produced good stops to beat away Emile Smith-Rowe's second-half effort and deny Nicolas Pepe late on. 8
Kristoffer Ajer
Impressive debut from the summer signing from Celtic. Solid at the back and comfortable in possession. Got forward well when he got the chance. Went off after taking a knock. 7
Ethan Pinnock
Completed a fairytale journey from non-league to the Premier League in six seasons and didn't look out of place. A man mountain at the back. 8
Pontus Jansson
Captain's performance from the Swede. Won everything in the air and kept Arsenal's attackers at bay all night. 8
Rico Henry
Was a threat going forward down Brentford's left. Kept Pepe relatively quiet at the other end. 7
Sergi Canos
History maker. Scored Brentford's first goal in the Premier League after cutting inside of Calum Chambers and firing past Bernd Leno. Also defended well against Kieran Tierney. 8
Christian Norgaard
Kept the ball ticking over in the middle of the park. The Danish Euro 2020 star was in the right place to nod home Brentford's second - his first league goal for the club. 8
Frank Onyeka
Strong debut in his first match in English football. Box to box and didn't give Arsenal's midfielders a chance to settle. Looped an early header over the bar. 8
Vitaly Janelt
Tireless performance in the engine room. The German was tidy on the ball and tough in the tackle. More to come. 7
Bryan Mbeumo
Ran the Arsenal defence ragged with his pace. Crashed a shot against the post with his weaker foot. Should've done better with his second chance after weaving his way through. 8
Ivan Toney
Worked his socks off and defended from the front. Last season's top scorer in the Championship didn't have much of a sniff in front of goal but linked up well with Mbeumo. 7
Substitutions
Mads Bech Sorensen (for Ajer, 70)
Missed the play-off final through injury, the Dane's long throw led to Brentford's second goal. 7
Mads Bidstrup (for Onyeka, 80)
Highly rated by the club, his inclusion suggests he will have a big part to play this season. 6
Marcus Forss (for Mbeumo 86)
Added some fresh legs late on. The Finnish frontman didn't have long enough to make his mark.
