Benfica winger Nicolas Gaitan believes that the lack of goals scored by Didier Drogba and Fernando Torres have created an atmosphere of anxiety around the Chelsea squad.
The Blues currently sit fifth in the Premier League table and have taken only 10 points from a possible 27.
Torres's brace in the 5-2 win over Leicester City ended a 24-game run without a goal, while Drogba has only scored three in his last 13 club matches.
24-year-old Gaitan intends to use the Londoners' nervousness to his side's advantage when the pair meet at the Estadio da Luz in the first leg of their Champions League quarter final on Tuesday.
"I think there is an anxiety in Chelsea by the lack of goals from Torres and Drogba," Gaitan told The Sun.
"We can exploit that and even though it will be difficult to stop them, it is possible and I have confidence we will keep a clean sheet."
The Argentine international is reportedly the subject of a bidding war between Manchester United and Manchester City.
