Former Chelsea defender William Gallas is backing Fenerbahce defender Attila Szalai for a move to Stamford Bridge.
The Hungary international is being linked with a January switch to the European champions.
Gallas, who is now a youth coach in Hungary with MTK, said: "Szalai is a strong and fast player.
"In my opinion, he is the best player of the Hungarian national team. Even Chelsea following him is a very good development. He can improve himself even more by going there and playing with defenders around the world.
"Every match is very tough in England. However, I was not afraid of this, and Attila is not afraid either."