The Hazards could become the fifth set of brothers to play for Chelsea
Thorgan Hazard will join his brother at Chelsea next season after completing his move to London.
The 19-year-old star has switched from French side FC Lens for an undisclosed fee to team up with brother Eden, who signed for Chelsea last month.
Thorgan started his career at Lens in 2007 and made his first-team breakthrough last season, making 11 appearances.