He has been named Chelsea player of the year three times and, in 2015, was named the PFA Footballer of the Year.
Both Eden and Thorgan are full Belgian internationals, while another of the Hazard brother, Ethan, 14, plays in the youth section of Belgian club Tubize.
The four brothers come from a footballing family, with father Thierry having played for La Loviere in the Belgian second division for many years and mother Carine playing at the top level of the women's game in their home country, before retiring to focus on family life.
Kylian could make his first Chelsea appearance when the development squad face Sunderland on September 9.
-Daily Mail