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Didier Drogba trained with Chelsea on the eve of a possible Champions League return.
The final act of Drogba's first spell was scoring the decisive penalty in the 2012 European Cup final win.
The 36-year-old, who rejoined the Blues this summer, missed Saturday's win over Swansea with an ankle injury but trained ahead of Wednesday night's Group G opener with Schalke at Stamford Bridge.