Former Aston Villa striker Tony Cascarino says Arsenal must get rid of fullback Hector Bellerin.
Mikel Arteta's side were well beaten by Manchester City last week after David Luiz was sent off and gift-wrapped a 2-0 win for Pep Guardiola's side.
Then struggling Brighton managed to produce a 2-1 comeback at the weekend to compound a miserable return for the north London club.
"Their right-back position is a problem," Cascarino told talkSPORT.
“Hector Bellerin is not a good right-back for me. He's quick, he's pleasing on the eye. I don't think he's a great defender, I never have done.
“But who's putting pressure on him? [Ainsley] Maitland-Niles has become a sort of wing-back, but he's not going to do it.
“On the other side, they're fine. [Bukayo] Saka can play left-back, [Kieran] Tierney can play left-back, no problem."