Fabregas helped Chelsea march into the Capital One Cup semi-finals last night with a 3-1 win at Derby.
The Blues are top of the Premier League, going well in the Champions League and also have the FA Cup to come.
And Fabregas reckons his new side can go all the way on all four fronts.
"Time will tell, It's all up to us," he said. "We definitely have the talent, the discipline and the courage to do it from what I've seen so far from my short time here.
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Jose Mourinho and Cesc Fabregas disagree over Chelsea's quadruple chances
"I can see a team doing well but we have to work hard for it and at the end of the season we will speak about it."
"We don't choose competitions, we don't choose matches, it is the next match, that is the most important thing, whatever competition that is in," he said.
"We don't speak about four trophies. It was spoken that we would be unbeatable in the Premier League, we didn't do it. Now it is being spoken about the quadruple. Can we do it? No."
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