Juan Mata is confident the Chelsea players are ready to change the club's season around after admitting it is time to 'start again'.
Chelsea sacked Andre Villas-Boas on Sunday following a 1-0 defeat at West Bromwich Albion 24 hours earlier left the club in fifth place and 20 points behind Premier League leaders Manchester City.
Villas-Boas lasted barely eight months in charge at Stamford Bridge and the final weeks of his reign were overshadowed by rumours of player unrest.
Mata wished Villas-Boas luck on Sunday evening after being brought to Chelsea from Valencia by the Portuguese coach last summer.
The Spain international has been one of the Blues' shining lights in a disappointing campaign to date, but he insists the club's season is not lost.
Interim manager Roberto Di Matteo is preparing for an FA Cup fifth-round replay at Birmingham City on Tuesday evening, while Chelsea must overturn a 3-1 deficit against Napoli in the UEFA Champions League next week.
Playmaker Mata says he and his team-mates are ready to unite behind Di Matteo and snatch fourth place in the Premier League, and keep their FA Cup and Champions League dream alive.
"I think we have to start again," Mata told Chelsea TV.
"We are not in a good moment, we are not in a good run of results, but we all want to change it. I think we are ready to change it.
"We have a very good squad and we have two months to achieve our objectives in the Premier League, in the FA Cup and Champions League."
Who should be the next Chelsea manager?
Roberto Di Matteo