Chelsea advance from Group A despite losing 1-0 at Werder Bremen where Per Mertesacker (left) scored the only goal after 17 minutes with a powerful downward header following a corner.
Despite the defeat Chelsea remain top of the group with 10 points, the same as Werder and two ahead of Barcelona, who won 2-0 at Levski Sofia.
Chelsea have a better head-to-head record against Werder and even if they should unexpectedly lose at home to Levski Sofia in their last group match on December 5, and Barcelona beat Bremen to take top spot, Chelsea cannot finish lower than Bremen so qualify in second place at worst.
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