According to TheIndependent, the Manchester United manager is reportedly unhappy with the amount of time his players spend on social media, and has stopped players from posting anything on Twitter, Facebook, Snapchat or Instagram 48 hours before a match.
Bailly has been caught posting a video on Instagram on Wednesday of Mata doing some ball skills in rhythm to Niska's B.O.C at United's Carrington training base.
Manchester United play Celta Vigo in the first leg of their Europa League semi-final on Thursday night.
- Video: Mexican striker performs bizarre goal celebration by running into fence
- Tony Adams misses out on signing Nigel Reo-Coker... to team in Norway's second tier
Get the best features, fun and footballing frolics straight to your inbox every week.
Thank you for signing up to Four Four Two. You will receive a verification email shortly.
There was a problem. Please refresh the page and try again.