Arsenal look to maintain their perfect start to the Champions League on Wednesday as Manchester City look for their first win.
Arsenal though are not the only side with a 100 per cent record, indeed every group from A to D has a team with two wins, as Malaga, Porto and Real Madrid also boast immaculate records.
The Gunners host second placed Schalke in Group B in the first of their double-header against the German side and Arsene Wenger will know he cannot underestimate the Bundesliga outfit.
Whilst Arsenal were beaten by Norwich City at the weekend, Schalke were recording a hugely impressive 2-1 win at local rivals and German champions Borussia Dortmund.
Montpellier tackle Olympiakos in the other Group B clash, with both sides looking for their opening wins of the 2012/13 campaign.
Likewise, Roberto Mancini's Premier League champions Man City travel to Amsterdam in search of a much-needed European win. Having managed just one point thus far City know three points are needed in Holland against an Ajax side who have lost their opening two games.
Real, who sit on top of Group D, travel to Germany to face Dortmund, who will be anxious to get back to winning ways following their weekend derby defeat.
Portuguese giants Porto sit pretty on top of Group A and they will look to make it nine points from nine as they host Dynamo Kiev at the Estadio do Dragao.
Big spending Paris Saint Germain face a trip to Zagreb against a Dinamo side who are yet to claim a point in the Champions League group stages this term.
Group C sees Malaga protect their unbeaten record at home to out-of-sorts AC Milan, who would go top if they secured the win in Spain.
Russian champions Zenit St Petersburg have endured a terrible start to the campaign, and they will be looking to register their opening point as they host Anderlecht.