Florent Malouda claims winning the Carling Cup mid-season would boost Chelsea's confidence in pushing for the Barclays Premier League title in the remaining months of the campaign.
Wednesday night's 2-1 victory over Everton, which confirmed the Blues' place in the quarter-final draw, demonstrated the team's unity and determination to succeed this year, and Malouda has urged his teammates to maintain consistency when they host Arsenal at Stamford Bridge this weekend.
"The League is our priority," he said. "You need to start well but also to finish well as well, and we are coming into a period where we play a lot of games and every point is important.
"We stay calm and have to play Arsenal this weekend. With a win we can expect great things for the rest of the season."
The Blues dropped six points behind Premier League pace-setters Manchester City, after being condemned to a controversial 1-0 defeat at the hands of west London rivals QPR last weekend - a match that Chelsea had two players sent off.
But after captaining Andre Villas-Boas' side to victory at Goodison Park in midweek, the 31-year-old midfielder is confident the players have got the disappointment of last weekend out of their system, and are focused on getting back to winning ways.
"Of course we want to win, we feel if we win a competition in February it can be the start of a great finish for us," he added. "We played with 10 men once again but the spirit we showed and the will to win the game is great from the team, [and] it shows our ambition.
"It's difficult with ten men but we always play to win the games and I think we did a great passing game and in the end created a lot of chances.
"That's a great feeling when we give everything, run for your team-mates, and the spirit is very good and the squad is very strong."
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