Manchester United hero Roy Keane was taking no prisoners in assessing Arsenal's loss.
Former Manchester United man Roy Keane was in no mood for messing on Tuesday night.
Stung by criticism from former manager Sir Alex Ferguson at his book launch early in the game, the bad-tempered Irishman was a pundit in the ITV studio for the Arsenal v Borussia Dortmund game.
Having let 'disloyal' Sir Alex have it before the game, he showed no sympathy for the Gunners after their 2-1 loss.
"That's Arsenal's punishment, they must live with it.
"They have a lot of hard work ahead. They have had plenty of plaudits over the past few weeks but are not the real deal yet.
"It's a reality check for them
"It's a lesson at this level, you have got to do more in attacking third, and you cannot give away chances to players like Lewandowski - You will get punished."
The home loss certainly makes things awkward for Arsenal.
With Napoli beating Marseille, along with Dortmund both teams sit level at the top of the group with six points, and the Gunners face away trips to both teams. Fans will hope the loss is not costly.
What do you think of Keane's comments? Are you concerned about the group?
image: © wonker