Graham Potter's Chelsea players must tread the line carefully as they look to secure a passage into the Champions League quarter-finals. The second leg of their last-16 tie against Borussia Dortmund at Stamford Bridge on Tuesday is effectively a game that will define the season.
In the bid to get to this stage there has already been some collateral damage, with Mason Mount forced to miss the second leg due to suspension after picking up a yellow card in Germany. The 24-year-old came on as a second-half substitute but still found his way into the referee's book.
It's a blow for Potter, who is already missing Thiago Silva for the tie due to injury and has to negotiate a potential shift in tactics and personnel in his backline, meanwhile, N'Golo Kante's recovery hasn't put him in a position to feature either.
