It was a disappointing start to the Champions League for British teams as Chelsea, Liverpool and Celtic all failed to win their opening matches.
Despite creating loads of chances, Chelsea were held to a shock 1-1 draw by Norwegian side Rosenborg.
Liverpool boss Rafa Benitez said his side's performance was "very very bad" away to Porto, but a goal by Dirk Kuyt helped them save face with a 1-1 draw.
It was worse for Celtic who lost 2-0 away to Ukranian side Shakhtar Donetsk.
Lots of people think Rosenborg is one of the weakest teams left in the competition, but that didn't stop Miika Koppinen putting the visitors ahead before half-time.
Chelsea had loads of near misses trying to equalise before Andriy Shevchenko got one back for the Blues after the break.
Liverpool weren't at their best but held on to their away draw despite going down to 10 men after Jermaine Pennant was sent off in the second half.
Elsewhere, Celtic boss Gordon Starchan said they were shocked by their defeat.
The Scottish champions couldn't find a reply to Shakhtar Donetsk after Evaeverson Brandao scored twice within the first eight minutes of the match.