The seven Chelsea untouchables Thomas Tuchel is set to start in first leg against Real Madrid

Thomas Tuchel possesses a Chelsea squad that is the envy of many clubs across Europe. It's one packed full of quality and experience – the majority of the players are reigning European champions let's not forget. Yet even the Blues head coach has his tried and trusted stars, the key men he will turn to on the bigger occasions.

And they don't get much bigger than a Champions League tie against Real Madrid. The Blues will welcome Los Blancos to Stamford Bridge tomorrow for the first leg of their quarter-final. The return fixture will take place less than a week later at the Santiago Bernabeu and Chelsea supporters will hope their side travel to the Spanish capital with a lead.

That will not be easy. Tuchel has already accepted as much. "The challenge cannot be much higher than playing the second leg in the Bernabeu with spectators," the German said after the draw was made. "It is a big challenge and also there’s big excitement around this match and fixture. We know what is coming and it will be a tough challenge."

Thomas Tuchel will expect Chelsea's own Lionel Messi to return and complete Real Madrid repeat

Chelsea faced Real in last season's Champions League semi-finals and ran out 3-1 winners on aggregate. Were it not for some lax finishing from the Blues, the scoreline could've been far more emphatic. However, that experience is one that the Blues will lean on over the next week. They know how to get the job done.

Tuchel will, of course, make tweaks to his Chelsea set-up but he isn't likely to reimagine his tactical approach for the visit of Carlo Ancelotti's side. And that will mean there are several players who are untouchable in his 3-4-2-1 system. Here, we pick out seven players who are expected to be deployed