There's no way Wenger could have known Ospina would pick that night to make such a grisly error or that Chelsea would show such a "lack of composure".
The young Belgian goalkeeper is thoroughly enjoying playing for José Mourinho after his three loan years at Atlético Madrid.
After reinventing himself as a physical defensive midfielder at Benfica, Serbian Nemanja Matic jumped at a chance to re-enter the Premier League fold.
After helping Chelsea to an epic win over Barcelona in the Champions League, Roman Abramovic might still not be convinced of the Italian's talents.
Gareth Bale, Tottenham Hotspurs's flying winger, has set his sights on getting the North Londoners back into the Uefa Champions League.
Chelsea's former manager tells Dominic Fifield he feels no bitterness over his swift and silent exit.
The England and Chelsea captain says becoming a manager is his 'overall aim'.
Robin van Persie was digesting the imminent prospect of two influential midfielders departing the Emirates Stadium when his thoughts focused in.
Chelsea will waive a potential appeal and accept the two-match ban imposed on Didier Drogba by Uefa following his dismissal in the Champions League.
Chelsea are drawing up plans to reshape their squad after being knocked out of the Champions League this week.