Former Arsenal player David O’Leary has now been discussing a surprise transfer Mikel Arteta pushed for last summer. O’Leary, who played for Arsenal on 618 occasions, certainly knows what it takes to be a success in North London. The Irish centre-back who won two league titles with Arsenal, as well as two FA Cups. And given the progress the club are now making under Mikel Arteta, there’s hope that a return to regularly lifting silverware isn’t too far away. In fact, tonight’s visit to FC Porto in the Champions League knockout stages is hoped to be the start of something special. That being sai…