Benjamin Mendy has followed the example set by Manchester City team-mate Sergio Aguero and gone prematurely grey.
Striker Aguero ditched his natural black hair earlier this month when he debuted a dyed silver fox style in City's 3-1 win over rivals United.
Left back Mendy, who is currently in Barcelona after undergoing knee surgery, has now followed suit.
On Thursday, City's official Twitter account uploaded a video of Mendy stretching his legs, one of which was bandaged, but the main focus of the post was the Frenchman's head.
The video was captioned with the message: '.@benmendy23 rocking that @aguerosergiokun look!'
Mendy completed the full 90 minutes in City's derby triumph over United, but was later put under the knife after suffering a small tear to the meniscus muscle in his left knee.
He travelled to Barcelona to have the procedure done by renowned surgeon Dr Ramon Cugat.
At the weekend he was seen posing triumphantly as he walked out of hospital after surgery.
He has remained in Barcelona to continue his rehabilitation. No return date has been set but he will play no part on Saturday when City visit West Ham.