Queens Park Rangers manager Harry Redknapp is baffled to why Arsenal did not sign Chris Samba from Blackburn Rovers before the Congolese centre-back secured a transfer to Anzhi Makhachkala.
Samba was frequently linked with a move to Arsenal during the January transfer window of 2012, but a bid from the Gunners was not forthcoming and the 28-year-old instead secured a switch from Ewood Park to Russia.
The former Blackburn captain is now back in the Premier League with QPR, having joined for a club record fee in January, and Redknapp finds it hard to fathom that Samba was never snapped up by Arsenal.
"He is everything you need. He is quick, he can play round his feet.
"He is a proper centre-half. He could play anywhere in this country and for all the top teams."
Arsenal's defensive problems were exposed once again on Sunday as the Gunners gifted Tottenham two goals in a 2-1 victory for the home side at White Hart Lane.
Gareth Bale opened the scoring for Spurs before Aaron Lennon doubled the advantage, with both goals coming thanks to some slack defending from the Arsenal centre-backs.