Barcelona really performed very incredible, I didn't expect Barcelona will defeat Dortmund so easily since I usually think Dortmund are performing good in the ucl more then the league competition, with this goal difference i don't think Dortmund can do anything in there home and defeat Barcelona in the uc for the second leg, in my opinion I think Dortmund will definitely be eliminated because they can't recover in the next match. Barcelona have mr chance then them in the competition and they have more key players then them this season, they should just performed and finished in top 4 in the Bundesliga so that they can get the opportunity to qualify to the next Champions league next season. I think is only inter Milan can give Barcelona tough time after the quarter finals, because am thinking they are in better shap and they can probably stop Bayern Munich in the second leg since they are even leading them with goal difference currently, and they will play at home, let see how the second leg will ended.
Barcelona played really well against Dortmund and it is hard to see how Dortmund can catch up after being behind by so many goals. Barcelona has strong team with important players which gives them advantage in competition. Dortmund has been focusing on Champions League but they have been playing inconsistently in their league. Looking ahead Inter Milan might be team that can give Barcelona tough time in quarterfinals. They have been playing well and have good chance of beating Bayern Munich. Second game will be very important in deciding which teams move on in competition.