The ex-Blues defender has been impressed with the youngster, but thinks he needs to be more vocal on the pitch if he wants to emulate a club legend
Andreas Christensen has been advised by William Gallas that he needs to talk more on the pitch and add to his leadership skills if he is to live up to comparisons with Chelsea legend John Terry.
Many, including Antonio Conte, have compared the highly-rated Dane to a club icon who won 15 major honours during a glittering spell as the Blues' most decorated captain.
Those comments have come on the back of Christensen benefitting from a two-year loan spell at Borussia Monchengladbach to establish himself as a first team regular.