Chelsea chief executive Peter Kenyon said that his side should look carefully at the other teams in their UEFA Champions League group apart from Spanish champions Barcelona. Chelsea will face Barcelona for the third successive season in the UCL after the draw paired them with the Spanish giants in Group A, alongside Germany's Werder Bremen and Levski Sofia of Bulgaria. "Walking in here, I think it was expected," Kenyon told Sky Sports Network on Thursday. "We shouldn't overlook the other sides in there. Werder Bremen have had a good start to the season. It's a big group." The previous meetings between Chelsea and Barcelona in the European competition were at the centre of controversy, but Kenyon insisted that football what counts. "I hope people concentrate on the football, which is important. This is what the Champions League is about at the end of the day. Fans want to see us against the big teams and they don't come much bigger than Barcelona." "Let's let the football do the talking in this game. I think we've got to concentrate on getting through," he added.