Squillaci - rested for the mid-week Carling Cup win at Tottenham - is set to partner Laurent Koscielny at the heart of the Gunners rearguard against West Brom on Saturday as Thomas Vermaelen still battling to recover from an Achilles problem.
The experienced centre-back has settled quickly into English football, having jumped at the chance of a £6million move from Sevilla just before the transfer window closed.
Jumped at the chance: Sebastien Squillaci joined Arsenal for £6m from Sevilla
Squillaci played in the 2004 Champions League final for Monaco against Jose Mourinho's Porto and was also part of Les Bleus World Cup disaster.
However, the defender believes Arsenal fans have yet to see him at the very top of his game.
He said: 'I have my best years ahead of me. I had a nasty ankle injury in the second half of last season, but I am feeling really well, physically and mentally now.
'I look old here in the dressing room at 30 with all those young players, but I am ready and motivated to do well.
'You can always improve and there are lots of aspects of my game I need to work on - being more physical and more solid, reading the game better, quicker play with the ball. I need to adapt in the new league as well.
'But I am a proper defender, tough on my opponent, good in the air. With the ball, I always try to play simple, good passing. I have scored a few headers on set-pieces, so I can help there too.'
After being made aware of Arsenal's interest, Squillaci asked not to be included in the Sevilla squad for their Champions League qualifier against Braga so as not to be cup-tied.
He added: 'I spent two great seasons at Sevilla, but early on I realised that I was not part of the manager's plans this year, and that it would be better for me to leave.
'When my agents told me, just before the end of the transfer window, that Arsenal were interested in signing me, I told them 'go for it.' There was no way I could let this opportunity slip.'
We're in the money! Arsenal announce record pre-tax profits of £56mArsene Wenger: It's not easy to move to a new stadium and fight for trophies ARSENAL FC