Mendy also hit out at Manchester City for not paying the wages of the duration of his contract.
Raheem Sterling scored his first Arsenal goal and Jack Porter became the club's youngest ever starter in a 5-1 rout of Bolton in the League Cup.
Sterling will now boast four English giants on his CV: Liverpool, Manchester City, Chelsea and Arsenal.
Crystal Palace have shown interest in signing English forward Raheem Sterling with Aston Villa said to be involved.
It was a welcome win for Chelsea after suffering a 2-0 loss in Maresca's debut game against Manchester City at the weekend.
Mauricio Pochettino's side were fortunate to survive a stirring fightback from Championship promotion chasers Leicester amid a mutinous atmosphere at Stamford Bridge.
Despite their lethargic display, Chelsea rallied to take the lead in first-half stoppage time.
Raheem Sterling sparkled with a brace and Nicolas Jackson bagged his first goal for the club as Chelsea swept aside Luton 3-0 to give Mauricio Pochettino his first Premier League win as Blues boss
Raheem Sterling will return home from England's World Cup camp in Qatar with doubts over whether he will return in time for Saturday's quarter-final against France.
Chelsea host Wolverhampton Wanderers in a Premier League fixture at Stamford Bridge.