Chelsea boss Jose Mourinho is set to field a completely different side for the Capital One Cup match against Swindon Town - and has warned that every one of his players is on trial.
Having suffered back-to-back defeats prior to their 2-0 win over west London rivals Fulham at the weekend, Chelsea were going through a sticky patch, with some quarters suggesting Mourinho's men were in a mini-crisis.
And with the Special One having hit out at his "immature" and under-performing stars, he has challenged his Chelsea squad to step up to the mark and improve their displays - or risk being pushed towards the Stamford Bridge exit.
Tuesday night's trip to Swindon Town gives Mourinho a chance to cast an eye over some of his fringe players, with the Portuguese tactician having opted to name a completely different line-up.
It means starts for high-priced superstars Juan Mata, David Luiz, Michael Essien and Willian, among others, in a probable side worth £137 million against the League One outfit, with first proper chances this season for Cesar Azpilicueta and Ryan Bertrand.
And Mourinho hinted that the players on show at the County Ground should be under no illusions that they have to show their commitment to the Blues cause - or pay the price.
Speaking to reporters ahead of the game, Mourinho said: "You continue to change when you play Basel, then you play Fulham, then Swindon. It's normal.
"Against Swindon, it will probably be good to play with some of these boys to get them confidence - if we play well.
"But it is the type of game that can betray you. It can give you confidence or take your confidence.
"If we play well there, it will be a good game to play these boys. Naturally I have to make some changes and wait for some players to say, 'I am you first choice - compulsory.'
"Some of the others, when they don't have strong effective performances, it's normal we have some doubts. This is the process."
Chelsea predicted line-up (and prices - with thanks to the Daily Mirror)
Mark Schwarzer (free); Cesar Azpilicueta (£7m), Tomas Kalas (£5m), David Luiz (£25m), Ryan Bertrand (£125,000); Michael Essien (£24.4m), Marco Van Ginkel (£8m); Willian (£30m), Juan Mata (£23.5m), Kevin de Bruyne (£7.2m); Demba Ba (£7m).