Graham Potter's first Chelsea team will be the manager's Champions League debut as manager. It will also be his side's first since losing to Dinamo Zagreb and the maiden match since Thomas Tuchel's shock departure from Stamford Bridge.
It's been a long week and one in which Potter and his staff will have had more preparation time than usual to decide who and how they will attempt to tackle the threat posed by RB Salzburg.
Potter has the chance to give the players out of favour or lost confidence a chance to shine with a full week to prepare for the match and recharge.