It will be hard to avoid a serious case of 'what-if' from dominating the thoughts of Chelsea fans as England face Germany at Wembley.
The match, a dead rubber for Gareth Southgate's side that were relegated from their Nations League group after defeat against Italy, will be the last one before the winter World Cup but also a coming together of several current and former Blues stars in London.
With Reece James, Raheem Sterling, Mason Mount and Ben Chilwell all in the England squad, alongside Kai Havertz in Hansi Flick's team, there may well be a lot of interest from Graham Potter in the match. His interests will be further raised to see how some of the young stars on view get on.