Barcelona were widely expected to waltz through Group D of the Champions League, but after two games they lie second in the standings.
However, this could all change with victory at home to Copenhagen, who are the surprise pace setters.
Copenhagen have won both of their opening Group D clashes without conceding a goal and they are 16/1 to beat Barcelona and make it nine points from nine.
Barcelona are unbeaten in six European outings against Danish opposition, while Copenhagen have failed to secure victory in their six showdowns with teams from Spain.
Pep Guardiola’s team have topped their group in each of the last three seasons and are 1/8 to beat Copenhagen and substantially increase their chances of doing so again.
If Copenhagen are to cause a giant upset at the Nou Camp, then they may be relying on Dame N’Doye to score as he has found the target in both of their opening games.
He is 16/1 to be the first goalscorer against Barcelona, although a more popular selection in this betting market is likely to be Lionel Messi at 5/2.
Panathinaikos host Rubin Kazan in the other Group D clash and the home side know that anything but victory will virtually guarantee that they will fail to qualify for the knockout stages of the Champions League.
The Greek side are without a point from their opening two games and they have only won two of their last eight home games in the competition.
Panathinaikos are 13/8 to beat Rubin Kazan, with the visitors the same price to claim victory in their first ever meeting with Greek opposition.
However, Panathinaikos did win their one previous fixture with a team from Russia when they beat Lokomotiv Moscow in the 2008 UEFA Cup.
It is 11/10 that there are over 3.5 goals in Barcelona’s game with Copenhagen. See the whole Barcelona vs Copenhagen match betting odds market.