Mikel Arteta admitted it was a “genuine dream” watching Arsenal’s dominant 6-0 victory over Lens at the Emirates Stadium which saw them qualify for the Champions League last 16.The Gunners topped Group B with a game to spare after they battered their French opponents with six different goalscorers.“It was a genuine dream,” Arteta said of his side's performance.“We had a chance to qualify today and we’ve done it in a really convincing way against a really good side. The team from the beginning showed a lot of aggression and determination to go for the game."