and Southampton were "unlucky". Stats for the game:

Shots 19 - 6
On target 8 - 1
Possession 59 - 41
Corners 9 - 4
Fouls 7 - 14 (we kicked them off the park?)

What's lucky about that? Those cold stats say the team which deserved to win... won.

Saints weren't "unlucky" to go down to 10 men. Their manager made a mistake. If Wenger had made that mistake an assortment of daggers would have been plunged into him by now.