Arsenal legend Thierry Henry says Chelsea can add the Premier League and Champions League to yesterday's League Cup triumph.
With one competition already out of the way, Jose Mourinho's men will now focus on keeping the lead in the Premier League ahead of a tough home game against Paris Saint-Germain in the Champions League.
And Henry believes the Blues have enough quality to win all three competitions.
"I think they can [win the treble]," Henry is quoted as saying by Sky Sports.
"They have all of the quality required to win the treble.
"I'm so eager to see that game against Paris Saint-Germain. That will be massive. If they beat PSG, you have to go through maybe Bayern Munich, then Real Madrid and Barcelona.
"Time will tell. But that PSG game will be a massive task for them."
Chelsea have been labelled defensive and boring under Jose Mourinho but Henry disagrees.
"He [Jose Mourinho] came to do a job with his team and they did it," he said.
"They don't defend because they have to – they love and enjoy to defend. They live to defend, you can see that every time, that's why most of the time they play a final they end up winning it."