Arsenal lost the away game to Brentford 0-2 (0-1) in the Premier League on Friday.
Brentford started the match well and took the lead when Sergi Canos scored after 22 minutes, with an assist by Ethan Pinnock, making it 0-1.
It took a while for either team to score again. It took until the 73rd minute before Christian Nørgaard increased the lead. This brought the final score to 2-0.
Arsenal will take on Chelsea in the next game at home at Emirates Stadium on Sunday.