To the surprise of many Chelsea fans, Tiemoue Bakayoko played the full 90 minutes in Wednesday night's 2-2 draw away at Arsenal.
The 23-year-old French international was signed by Antonio Conte for £39.7m this summer as a replacement for Nemanja Matic.
Bakayoko was mightily impressive in Monaco's surprise title-winning campaign last season but has struggled to carry that form into the Premier League.
He was injured at the start of the season but has been a regular in the first team, despite a number of underwhelming performances.
"Bakayoko is a good signing for us," said Conte in August. "He is very young. My idea was to give Bakayoko the right time to adapt in this league behind Matic. But now after the sale of Matic, we need to try to accelerate this process for Bakayoko after his injury."
Chelsea and Arsenal played out a thrilling draw after Jack Wilshere finally managed to break the deadlock in the second half.
Goals from Eden Hazard, Marcos Alonso and Hector Bellerin followed but Arsene Wenger was far from happy in his post-match interview.
Arsenal's veteran French manager - who was incandescent at the referee following Sunday's 1-1 draw with West Brom - described the award of a penalty to Hazard as a "farcical decision".
"The regret we have is we were first to score and after that we have a farcical decision," said Wenger, speaking to Sky Sports.
"Look, since the start of the season it is what we have to take. I say it's a farcical decision - you could give 10 penalties like that a game. You read the foreign papers what they write about that and the English papers and you will see a difference.
"Games are spoiled by factors you cannot determine - we can only continue to play the way we want to play and hope things go for us."
Club record signing Alvaro Morata missed three golden opportunities to score but many Chelsea fans were more unhappy with another summer signing.
Bakayoko was doing very little to affect the game in the heart of Conte's midfield.
What Chelsea fans were tweeting about Bakayoko
Danny Drinkwater has only started three Premier League games since his big-money move from Leicester City - and Chelsea fans are seemingly desperate to see him start ahead of Bakayoko.
The 27-year-old Englishman may well get his chance when the Blues face Norwich City in the FA Cup on Saturday evening.
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