(Image): Key player in training today as Potter ponders UCL defensive replacement

Graham Potter has been taking another Chelsea training session today ahead of their trip to Germany for the Champions League round of 16 this week.

The Blues line up against Borussia Dortmund, with the first leg being played on Wednesday evening.

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One big decision Potter has to make is at the back, with Benoit Badiashile not making the squad registration last week. The natural replacement would be Kalidou Koulibaly, who missed the West Ham match on Saturday through illness.

Well, the good news is he has trained today.

Chelsea News