A good referee, relaxed, easy on the cards, and always right, was in charge of a match between two teams that were not so good, not relaxed and rather dull, considering the stakes.
Much more about the referee isn't there to say, but how did those two teams get so far into the Champions League? PSV had no forwards to speak of and Arsenal had only one, a minor talent and his name was not Henry.
The fomidable Brazilian Alex, defender by profession, did not only defend well he also scored twice. The fist time by standing on the right spot at the right time, the second time by jumping ten feet higher than the others. The first one was in the wrong goal though, but that doesn't make it less great.