This is Gallas's 12th season in the Premier League since he joined Chelsea from Marseille in the summer of 2001 and he is confident Caulker can develop into one of the finest in his position.
"I'm sure for the future he will be one of the best in England and I hope for him, if he works hard, that he will be one of the best," said Gallas. "He did well in the match at United and what I like from him is that he likes to listen.
"He does his job well and he is focused. He is not afraid to play football or to go forward and that is fantastic for him."