(Reuters) - Porto welcome Barcelona in the Champions League on Wednesday, a side unbeaten in their nine games this season, and while manager Sergio Conceicao knows his team will need to suffer, they are confident of making their opponents suffer too.
A 3-1 win at Shakhtar Donetsk in their opening game gave Porto a good start but they now face Group H favourites and La Liga champions Barcelona, who put five past visitors Antwerp without reply in their first match.
