Chelsea were 3-0 up when United were given two spot kicks. Though the second was debatable, United had two previous shouts for penalties which were decent shouts.
“The first one is an obvious penalty, nothing to say, but the second one is very, very dubious,” said Villas-Boas.
“You have to try and hold on to a lead, but it was cut short by two penalties.
“I don’t know if Howard Webb had the correct angle to make the decision but it is very unlucky for him to give it.
“It is Danny Welbeck’s leg that collides against Branislav Ivanovic’s.”