Chelsea have sacked Liam Rosenior, just three months after he signed a six-year deal to become their manager.The Blues have cut ties with the former Strasbourg boss after their shambolic 3-0 defeat to Brighton on Tuesday night.GettyChelsea have sacked Rosenior after a dreadful run of form[/caption]Rosenior joined in January as their successor to Enzo Maresca, and had a strong start at the club with six wins in his first seven matches.However, Chelsea have lost seven of their last eight in all competitions and likely to miss out on qualifying for European football.They face Leeds United in the FA Cup semi-finals on Sunday, live on talkSPORT, with the competition their last hope of winning a trophy.BlueCo, who took over Chelsea in 2022, will now be looking for their fifth permanent appointment in the dugout.Chelsea confirm Rosenior sackingA club statement read: “Chelsea Football Club has today parted company with Head Coach Liam Rosenior.“On behalf of everyone at Chelsea FC, we would like to place on record our gratitude to Liam and his staff for all their efforts during their time with the club.“Liam has always conducted himself with the highest integrity and professionalism following his appointment mid-way through the season.“This has not been a decision the club has taken lightly, however recent results and performances have fallen below the necessary standards with still so much more to play for this season. Everyone at Chelsea FC wishes Liam every success in the future.“Calum McFarlane will take charge of the team as interim head coach until the end of the season with support from existing club backroom staff, as we strive to achieve European qualification and progress in the FA Cup.“As the club works to bring stability to the head coach position, we will undertake a process of self-reflection to make the right long-term appointment.”Rosenior lost ten of his 23 matches in chargeGettyRosenior’s final gameThe 3-0 defeat at Brighton was Chelsea’s fifth consecutive league defeat with the Blues also failing to score a goal during that barren run.The last time Chelsea were in such bad form came all the way back in 1912.Chelsea have one win in their last eight matches in all competitions, a 7-0 thrashing of League One strugglers Port Vale in the FA Cup.Defeats have come against Paris Saint-Germain, Newcastle United, Everton, Manchester City and Manchester United during the streak.Brighton have become the latest side to pick up three points against the Blues, who look destined for another trophyless season.One of Rosenior’s final acts as Chelsea boss saw him tear into the players, as he told talkSPORT: “Unacceptable, unacceptable in every area. The complete opposite of anything I want to see on a football pitch.“I feel numb. I’m angry, frustrated. It has to turn around very, very quickly.”When asked how he can convince his players to turn their form around, Rosenior added: “At this moment, it’s not even about convincing.“I apologise to the fans after the game for them to travel this way, for the fans who watched at home.“That’s unacceptable. I can’t dress it up any other way. To represent this football club with the history and traditions that it’s got and for us to go and put in a performance like that.“I can forgive mistakes of giving the ball away, I can forgive missing shots, but what I can’t forgive is losing 50/50 duels, ducking out of headers. It’s embarrassing.“I’m really, really devastated. Not even at the result, but at the manner in which we lost this game.”