Last Updated: Sat, 31 Mar 2012 13:22
Salomon Kalou insists Chelsea should fear themselves more than Benfica when they meet in the second leg of their Champions League quarter-final.
The rivals clash at Stamford Bridge on Wednesday with the Blues in the driving seat after leaving the Estadio da Luz with a 1-0 victory last week.
A semi-final against Barcelona or Inter Milan awaits on April 18 should they dispose of Benfica, but Kalou is wary of complacency.
"I think our worst enemy can be ourselves, thinking that we have done the most difficult part," he said.
"We have to keep going, working hard. We have to prepare and try to score early and secure the victory at home.
"It's not finished yet. Benfica are a good team and we have to respect them. We have to play 100% in the second leg if we want to go through to the semi-final."
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