Gunners fans did not celebrate victory over Besiktas but there was much to cheer for with prospects as 'Chambers is better' than Manchester United star.
At just 19-years-old, the English prospect does not seem out of his depth in Premier League or Champions League competition - and exciteable Arsenal fans believe they secured the superior Saint to Manchester United's Luke Shaw… and at half the price, too.
Shaw's season last term saw him break into the England squad and win a £32 million transfer to Manchester United.
His upward trajectory appeared to have more momentum than Chambers's, yet it is the latter whose transfer has been the more successful to date as Calum has put in two successive performances that are man of the match worthy.
Chambers's displays have been so strong that some fans believe it gives Arsene Wenger a selection headache as the French boss may wonder what to do when Per Mertesacker returns.
When Chambers signed, it was believed he was marked as one for the future, however, he could well be one for the present, with Wenger now free to pursue a holding midfield specialist and a prolific goal-scorer, rather than prioritise a replacement for Thomas Vermaelen at centre back.
Calum Chambers' performances have looked very promising indeed. #AFC— G.O.A.T. (@LordSchofield) August 20, 2014
Chambers to me is better than Luke Shaw... #AFC. A great signing for us and a bigger loss for Southampton!— Dayved (@nobledaevide) August 20, 2014
Tbh Callum Chambers has impressed more than Kos so far, wonder what Wenger thinks especially when Per returns #afc— kigongo alex (@kigongoalex) August 20, 2014
Calum chambers has been so far our best player & he's just 19yrs old and new to the team, that says alot about the rest! #Afc— Mugacious (@KAbueRe) August 20, 2014