According to reports in the Spanish press, Mendy is expected to miss the rest of the season, leaving Madrid without their first-choice left-back for the run-in.
Champions League: Ferland Mendy's late strike helps Real Madrid beat Atalanta in Round of 16 first leg
Madrid have the advantage going into the second leg having missed out on the quarter-finals for the last two seasons.
Premier League: Gareth Bale returns to Tottenham on season-long loan; Sergio Reguilon signs for 30 million euros
Bale, 31, won four Champions League and two La Liga titles with Madrid after moving for a then world-record fee of £85 million (today $110 million, 93 million euros) in 2013.
LaLiga: Real Madrid move closer to title after win against Granada; Sevilla secure top four spot after Villarreal loss
Madrid can clinch their first title since 2017 on Thursday with a win at Villarreal, or if Barcelona lose points when they hosts Osasuna.
Karim Benzema fired Real Madrid to a 1-0 win in the city derby against Atletico Madrid on Saturday which underlined Real’s La Liga title credentials.
Benzema missed two good chances but got the second goal from close range in the 79th before Madrid defender Ferland Mendy was sent off four minutes later for a second yellow card
Lyon have decided to sack Brazilian coach Sylvinho just 11 matches into the season after a dreadful run of form, the Ligue 1 club said on Monday.
LaLiga: Zinedine Zidane happy with Real Madrid squad, insists relationship with club president Florentino Perez is strong
Zinedine Zidane insists his relationship with Real Madrid president Florentino Perez is strong and he is happy with his squad ahead of the transfer window closing.
LaLiga: Real Madrid boss Zinedine Zidane says he is happy with squad as end of transfer season nears
Zidane also said that his relationship with the club's president Florentino Perez is strong, also saying that the players he has are the best
LaLiga: Real Madrid boss Zinedine Zidane says he will count on winger Gareth Bale for upcoming season
Real Madrid manager Zinedine Zidane said that he'll be counting on Gareth Bale to deliver in the absence of Eden Hazard and will look to utilise him adequately
LaLiga: Real Madrid midfielder Eden Hazard to miss season-opening clash against Celta Vigo due to thigh injury
Eden Hazard has picked up a muscular injury to his right thigh during practice and is likely to be out for three to four weeks for Real Madrid
LaLiga: Poor pre-season casts doubts over Real Madrid's season despite spending spree and reinforcements
Real Madrid won only two of their seven pre-season games, shipping 18 goals and suffering three defeats including a humiliating 7-3 thrashing at the hands of local rivals Atletico Madrid and losses to Bayern Munich and Tottenham Hotspur.
Real Madrid's Ferland Mendy has been added to Zinedine Zidane's growing injury list after the Spanish club confirmed on Thursday the France left-back had suffered a calf injury.
Transfer Deadline Day Roundup Highlights: Inter Milan sign Romelu Lukaku from Manchester United; Kieran Tierney moves to Arsenal
Follow all the updates and news from the summer transfer window, with Real Madrid signing Chelsea's Eden Hazard and Barcelona getting Antoine Griezmann from Atletico Madrid.
Formerly with Twente Enschede in the Netherlands, Andersen moved to Italy in 2017 and has yet to be capped by Denmark at the international level
Left-back Ferland Mendy has taken Real Madrid's spending in the summer transfer window past 300 million euros as club rebuilds after disapppointment of last season.
Eden Hazard said on Thursday he wants to become a 'Galactico' at Real Madrid and believes he is joining the club at the perfect moment in his career.
LaLiga: Real Madrid continue summer spending spree with signing of French left-back Ferland Mendy from Lyon
Real Madrid continued their summer spending spree on Wednesday by completing the signing of left-back Ferland Mendy from Lyon.
Pre-season friendlies: Stevan Jovetic fires Inter Milan to narrow win over Lyon on bumpy Shanghai pitch
The match at Nanjing Olympic Sports Centre saw both Inter Milan and Lyon struggle with the poor surface and humidity.