Arsenal boss Arsene Wenger feels players are putting their fitness at risk by taking hair loss treatments.
Speaking generally about injuries, Wenger brought up the issue of hair-replacement therapy.
“Some (absences) are down to the medication that they take that you don’t even know about.
“Then you realise afterwards they took this medication, but that’s not prudent.
“The liver doesn’t work as well, toxins don’t leave the body as quickly as they should and they get tired.
“If you lose your hair, and if you’ve taken something to make your hair grow, it might not be good, especially for the rest of your body.”
Despite Wenger’s comments, Arsenal insisted there have been no such cases at the club.