Making wholesale changes to his starting line-up has been a consistent and unwelcome theme for Graham Potter during his reign as Chelsea manager. Amid injury crises and poor results accumulating for the Blues boss, he has been continually searching for the winning formula among his vast and expensive squad.
However, in arguably his most crucial week as Chelsea manager, he may have found a solution in the form of an old favourite. Against Leeds United last weekend, Potter reverted to a back-three - a system popular with former boss Thomas Tuchel - and stuck with it again for the win against Borussia Dortmund in the Champions League.
As such, the need for significant changes may have lessened, as it seems highly probable Potter will continue to adopt this shape at the King Power Stadium. However, he still faces a number of selection headaches due to the sheer nature of the deep resources in the playing staff at his disposal.