The revelation about Mendy’s rule-breaking comes as City deals with the impact of a coronavirus outbreak at the club that led to the postponement of Monday's match at Everton and forced at least five players into self-isolation.
Kylian Mbappe on Thursday joined French national teammates and other athletes in condemning police filmed beating a black music producer in Paris.
Premier League: Matt Doherty scores late as Wolves fight back from two goals down to claim stunning win over Manchester City
Ten-man Manchester City gave up a two goal lead as they crashed to a 3-2 defeat by Wolverhampton Wanderers at Molineux on Friday to leave them 14 points adrift of Premier League leaders Liverpool.
Premier League: Manchester City's Bernardo Silva handed one-match suspension for racially offensive tweet about Benjamin Mendy
Silva was fined 50,000 pounds ($64,000) and ordered to complete face-to-face education. The Premier League game Silva misses at Chelsea is on 23 November, after the international break
Left-back Mendy was part of the France squad that won the 2018 World Cup but has not played for his country since a UEFA Nations League game against the Netherlands in September last year.
Premier League: Pep Guardiola insists Manchester City won't spend in January transfer window despite injury issues
Pep Guardiola insists Manchester City will not buy a player in the January transfer window despite admitting he is concerned about his team's growing list of injuries in defence.
Fantasy Premier League, Gameweek 10 tips: Load up on Manchester City players but be wary of rotation
Get all the tips, predictions and updates you need to whip your team into shape ahead of Gameweek 10 of the Fantasy Premier League in our weekly FPL round up.
Premier League: Manchester City boss Pep Guardiola says Kevin De Bruyne, John Stones in contention for clash against Crystal Palace
City are unhappy about the Premier League’s scheduling after the release of the broadcast selections for the Christmas period, saying the fixtures favoured Liverpool
Premier League: Defender Benjamin Mendy ruled out of Manchester City's clash against Wolves due to hamstring problem
Manchester City defender Benjamin Mendy has suffered a fresh injury blow after he was ruled out of Sunday's game against Wolverhampton Wanderers with a hamstring problem.
'One of Bernardo Silva's best friends is Benjamin Mendy': Pep Guardiola defends his player over 'racist' tweet
The English Football Association has written to the Premier League champions requesting their observations after Silva posted pictures on social media on Sunday comparing Mendy to the character on a packet of Conguitos chocolates.
Premier League: Manchester City boss Pep Guardiola relying on Fernandinho to play centre-back against Watford as injuries plague defence
Watford are bottom of the league but come into the match against Manchester City, buoyant after recovering from 2-0 down to draw 2-2 against Arsenal
Premier League: Manchester City boss Pep Guardiola insists Benjamin Mendy can be still be a force for team
Pep Guardiola insists Benjamin Mendy can still be a force for injury-hit Manchester City despite the French defender's own struggles to find top fitness.
Pep Guardiola has been encouraged by the manner in which Benjamin Mendy has recuperated from his latest knee injury at Manchester City's medical base in Barcelona.
Premier League: Manchester City full-back Benjamin Mendy promises to be on best behaviour amidst reports of disciplinary issues
Disciplined last September for reporting late to have treatment on a foot injury after attending Anthony Joshua's boxing bout, Mendy was back in trouble with City boss Pep Guardiola this week
Premier League: Manchester City boss says it is upto 'incredible' Aymeric Laporte to force a return to the France squad
Pep Guardiola says it is up to Aymeric Laporte to force his way into the France squad, even though he described the defender's club form this season as "incredible".
Premier League: Perennially injured Benjamin Mendy's future in doubt as Pep Guardiola looks to make "three or four" summer signings
City missed out on Chelsea midfielder Jorginho and Manchester United's forgotten Brazilian Fred last summer in the search for a successor to Fernandinho
Premier League: Manchester City need to take extra care over Benjamin Mendy return, says coach Pep Guardiola
Pep Guardiola will monitor Benjamin Mendy's return to regular first-team football with Manchester City closely as he attempts to ensure that the France full-back suffers no repeat of his persistent injury problems.
Earlier in the campaign, Guardiola had encouraged the French World Cup winner to "forget a little bit of social media" to concentrate on his football.
Brazilian defender Naldo has joined Thierry Henry's Monaco from Schalke 04, the French Ligue 1 club struggling in 19th place announced on Thursday.
Premier League: Manchester City manager Pep Guardiola 'not going to spend anything' in January, despite string of injuries
Pep Guardiola has acknowledged that he will have to rest some of his players during a frantic December that presents City with nine matches across three competitions.