Arsenal lost the away game to Brentford 0-2 (0-1) in the Premier League on Friday.
Brentford scored the first goal when Sergi Canos scored after 22 minutes, with an assist by Ethan Pinnock, making it 0-1.
The next goal was long overdue. It took until the 73rd minute before Christian Nørgaard increased the lead. The 2-0 goal was the last one of the game.
Arsenal face Chelsea next up. The teams will face each other at Emirates Stadium on Sunday.