The Brazil international is confident that the Blues, who face Paris Saint-Germain in the second leg of their round of 16 tie on Wednesday, can go all the way in Europe this term
Willian believes Chelsea have what it takes to win the Champions League this season.
Guus Hiddink's men face Paris Saint-Germain at Stamford Bridge on Wednesday looking to overturn a 2-1 deficit from the first leg of their round of 16 encounter.
With Chelsea sitting 10th in the Premier League, a place in the top four looks unlikely, meaning they look set to focus on Europe and the FA Cup for the remainder of the campaign.
And Willian, who was named in Uefa's best XI from this year's group stage, feels the Blues can claim their second Champions League trophy this term.
"I think we can win it. It will be difficult because there are so many good teams," said the Brazilian.
"We have to think about Wednesday first and then step by step we can go to the final.
"There is always pressure at Chelsea to win titles, we know that. We have to concentrate for this game.
"To give Guus one title will be great for us and for him, so we will try to give him one trophy to go with.
"It’s the biggest game of the season. We know that. We have to show our quality in the game. It will be difficult for us, but I think we can win.
"We have great quality, they have as well. Games like this are 50/50. They can win, we can win, but on Wednesday from the beginning we have to show them what we want.
"We know they want the ball and to keep possession but we have to put them under pressure and press.
"We are more confident because we play at home. I think we can do that. It will be difficult but we can qualify."
- Goal