Enzo Maresca has left Chelsea after a total breakdown in relations at the club.Maresca’s shock exit comes after just 18 months in charge having won the Conference League, Club World Cup and then led the Blues back to the Champions League.Maresca won the Conference League and Club World Cup with ChelseaGettyRelations behind the scenes had been strained for some time.He missed his post-match media duties following the 2-2 draw with Bournemouth on Tuesday night in another sign that all was not right.This was attributed to illness, but talkSPORT understands this was not the case.In December, he claimed many at the club were not supporting him or the team.Maresca described the lead up to the 2-0 victory over Everton as ‘the worst 48 hours’ of his time at the club.Key talks were held on New Year’s Day where Maresca’s future was decided.Chelsea have won just one game in seven in the Premier League.The Blues face Man City on Sunday at the Etihad.What went wrong for Maresca?talkSPORT understands that the main issue was the medical department.Chelsea were adamant that it must be autonomous from the manager.Maresca leaves Chelsea after just 18 months in chargeGettyChelsea are understood to be unhappy with the 20 dropped points in the Premier League and Champions League.Maresca is also understood to have held talks with Man City over replacing Pep Guardiola, which has come as a surprise to the club.What did Chelsea say?In a statement, the club said: “Chelsea Football Club and head coach Enzo Maresca have parted company.“During his time at the club, Enzo led the team to success in the UEFA Conference League and the FIFA Club World Cup. Those achievements will remain an important part of the club’s recent history, and we thank him for his contributions to the club.“With key objectives still to play for across four competitions including qualification for Champions League football, Enzo and the club believe a change gives the team the best chance of getting the season back on track.“We wish Enzo well for the future.”Who could be next Chelsea manager?talkSPORT understands that Blue Co employee, and Strasbourg manager, Liam Rosenior is a contender to replace Maresca.Rosenior has impressed key figures at Stamford Bridge after guiding the French side to a seventh place finish in his debut season.Rosenior is a contender to replace MarescaAFP