The Champions League is back, with RB Leipzig taking on Tottenham in the round of 16.
The Bundesliga side are in action in north London against Jose Mourinho's Spurs side, with Julian Nagelsmann's men having the better of the first half at the Tottenham Hotspur Stadium.
RB Leipzig have created several chances against Tottenham and have been unfortunate not to take the lead, with chances for Patrick Schick and Timo Werner, among others.
But while Leipzig have impressed against Spurs so far, it is something else that has got fans talking about the German side.
That is the issue of their shirt sponsor, with Red Bull logos on the front of the shirts of the RB Leipzig players.
However, they are not all the same logo, which has prompted plenty of fans to ask the same question on social media.
Here's what they have been saying.
As noticed by these fans, some of the sponsor logos on the shirts are white, with others in different colours.
This is the first time that Leipzig have reached the knockout stages of the Champions League, having come through the group stage as winners.
The group also included Lyon, Benfica and Zenit St Petersburg.
