fouls that weren't

but

But he was wrong a lot of times. Wrong about so many little things: throw-ins for the wrong team, fouls that weren't, wrong with not awarding corner shots. And he was way to quick: many times he could have given the advantage and let the game move on.
All those mistakes by the referee(s) caused irritations with the players, hence the cards for protesting. Luckily the Milan players, old and wise, knew not to question the Austrian's decisions too often.
And I think he started with the wrong idea. He was severe, as if he was afraid it would get out of hand and that's not necessary with a team like Milan.

but

It was probably not in the box, or at least not bad enough for a penalty, but it was a foul by Nesta and Hleb fell. Plautz booked him for diving.
Both Plautz and De Bleeckere, senior referees for Euro 2008, seem to be losing it, they are not as good as they were a year or two ago.

match

Arsenal played well this time (unlike their last match), they just don't seem to have a good forward, Milan looked tired. This was Maldini's (65 next month) last Champions League match. I can't remember a Milan match without him