Willian appeared to fire a major dig towards under-pressure boss Antonio Conte, hours after Chelsea's FA Cup win over Manchester United.
The Blues were 1-0 winners thanks to Eden Hazard's first-half penalty, with Willian watching on as a substitute before coming on for the final few minutes at Wembley.
It was Antonio Conte's second trophy win since taking over in west London in 2016, but speculation continues regarding his future at Stamford Bridge.
It is well known that Conte has had bust-ups with a number of players and staff during his tenure, and Willian could be another of those on the wrong side of the Italian judging by his social media post.
The 29-year-old, who joined Chelsea in 2013, took to Instagram on Sunday morning to upload a picture of Chelsea celebrating with the Cup. He appeared to block his manager out of the image though, hiding him behind multiple emojis.
See below...
Next permanent Chelsea manager (via Sky Bet)
Luis Enrique - 15/8
Maurizio Sarri - 7/2
Carlo Ancelotti - 5/1
Brendan Rodgers - 8/1
Mauricio Pochettino - 8/1
Max Allegri - 10/1
Click here to see the list in full, along with more odds from the online bookmaker...
Odds correct at 1620 BST on 20/05/18.