When John Terry was coming through the ranks and learning his trade at Chelsea, it was Marcel Desailly who played a big part in his development.
The influence of the Frenchman on the youngster's career was significant. Desailly would lead by example and when the time called for it, he gave Terry the advice every up-and-coming player needs in order to succeed.
It's something Terry himself has spoken about at length, although it wasn't just Desailly's influence that played a part—it was playing football matches.
"Initially it meant so much to me just to break into the side.