Barcelona can score against us, but their defense can suffer from our attacks, as we conter very well and they are no so good in counters.
chelsea, as a more solid team, can beat us...specially because they dont slow down the pace the whole 90 mins, unlike us.
anyways, those both teams have the quality in midfield to overcome our midfield, but i see chelsea a little tougher than barxa, even when barza have the best atck.
in the end, we are talking about 3 big teams of europe, and any can win aginst any.