Chelsea boss Jose Mourinho was pleased with Samuel Eto'o's debut in defeat at Everton.
Eto'o looked sharp up front and had a chance blocked by Gareth Barry to open the scoring in the first-half.
"I think the players do have a killer instinct and Samuel was a killer all his career," Mourinho said.
"The situations where he was involved in the game makes me happy, it looked to be a good understanding with the team."
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