It was over two years ago when Chelsea were dismantled by an imperious Bayern Munich side at Stamford Bridge 3-0. It was on that very chilly February evening where the gap to Europe's elite was laid bare.
The finishing of Serge Gnabry in particular felt a level above anything the Blues had faced that season. A lot has changed since that night, most notably a majority of the squad humbled by Bayern going on to win the Champions League the next year.
But against Real Madrid on Wednesday night there was another demonstration of quality Chelsea have been aspiring to, this time from Karim Benzema. For all of Tuchel's annoyance with the level of his team's display, the Frenchman put on a masterclass of centre-forward execution.
