The Gunners went into the derby on the back of disappointing news as both Alexandre Lacazette and Pierre-Emerick Aubameyang were ruled out due to illness.
Folarin Balogun and Gabriel Martinelli replaced them, but the young pair struggled to make an impression against the newly-promoted west London outfit.
The Gunners suffered a disappointing 2-0 defeat, but things could have been worse as the Bees squandered a few clear-cut chances over 90 minutes.
Smith Rowe and Tierney were lively over the course of the game. They created chances for their teammates that could not be converted into goals.
Smith Rowe was the standout performer in the side as he barely lost possession. He misplaced just one of the 50 passes attempted on the night.
Tierney also produced a credible display with five accurate crosses into the box. The Scotland international also made six key passes in the derby.
Here is how some fans reacted to their performance on Twitter.
— Fábio Carvalho (@FCarvalho88) August 13, 2021
Sambi, ESR and Tierney are the only ones who put a shift in
— Mo_AFC (@lilmo88247623) August 13, 2021
Smith Rowe and Tierney performance are the only positive things that we got from the game
— an antivist (@antivist__AFC) August 13, 2021
Tierney and Smith Rowe have been excellent, that’s about it…
— MartinelLIT 🔥 (@AFCTom_7) August 13, 2021
Missing key players.
Our youngsters are not ready for the next step.
We lack squad depth.
Need a new GK, RB and ST.
We badly missed Partey.
ESR, Lokonga & Tierney looked lively but no support.
Long 3 weeks ahead.
— JØ Mágico (@afcJOmagico) August 13, 2021
Aside from the duo, Albert Sambi Lokonga was impressive on his debut. The 21-year-old made two tackles, two interceptions while delivering two key passes.
Bukayo Saka also made an impact off the bench. The England international had limited pre-season preparation, which justified his absence from the starting XI.
The Gunners were missing key players such as Aubameyang, Lacazette, Thomas Partey and Gabriel Magalhaes, but their performance was still unacceptable.
Their defence looked all over the place with Calum Chambers having a tough night at right-back. The Gunners need to reinforce the position this month.
Stats from Transfermarkt.com and Whoscored.com