Barcelona will be hoping that lightning does not strike twice as they face Rubin Kazan for the second consecutive season in the Champions League.
Rubin caused a major shock in their debut Champions League campaign last season when leaving the Nou Camp with a 2-1 triumph and then took another point off Barcelona when the second group game finished goalless in Russia.
Barcelona are expected to put things right this season and beat Rubin for the first time and they are 4/7 to follow up on their opening victory over Panathinaikos by making it six points from six.
Meanwhile, Rubin are 5/1 to beat Barcelona again and it is 7/1 that the game finishes 0-0 in Russia for the second straight season.
With Barcelona widely expected to win Group D at odds of 1/20, the other three teams are seemingly battling for second place to reach the knockout stages of the competition.
This puts added pressure on the other group games, with Panathinaikos looking to get their qualification aspirations back on track at home to FC Copenhagen.
The Greek side lost 5-1 to Barcelona in their opening group game but will be confident of beating Copenhagen as they defeated the Danes away from home in a Europa League game in 2007.
Dame N’Doye scored the only goal in that Panathinaikos win, but will now be hoping to put one over on his former club after making the move to Copenhagen.
N’Doye is 8/1 to be the first goalscorer, while Copenhagen are 7/2 to beat Panathinaikos to add to their victory at home to Rubin in their opening game.
Panathinaikos are 5/6 to win and increase their chances of progressing from Group D.
Barcelona have won their Champions League group for the past three seasons and are the 5/2 favourites to win the competition. See the whole Champions League winners betting odds market.