The 19-year-old will join his Brazilian Under-20 team-mate Nathan at Stamford Bridge after the club completed his transfer from Atletico Paranaense last month.
In addition to that pair, Chelsea???s ever-growing Brazilian contingent includes Willian, Oscar, Ramires, Filipe Luis, Lucas Piazon and Wallace while Spanish international Diego Costa was born in Brazil.
There is a strong possibility Kenedy will be sent out on loan to develop as Jose Mourinho already has a wealth of attacking options at his disposal with Eden Hazard, Willian, Juan Cuadrado and Oscar all vying for playing time in the attacking midfield roles.
It could be a busy week at Stamford Bridge as??Chelsea are also favourites to sign Asmir Begovic from Stoke City, and are rumoured to hold an interest in Aleksandar Mitrovic.
Bosnia-Herzegovina international Begovic has only one year remaining on his contract at the Britannia Stadium, but Stoke want at least ??8million for the 27-year-old.