Kenedy has found his first-team opportunities limited under Antonio Conte this season and is yet to make a single Premier League appearance for the Blues.
However, the 21-year-old has been working hard at Chelsea’s Cobham training ground as he bids to make more of an impact before the end of the campaign.
Brazilian born forward Costa posted the picture above on his personal Instagram account and wrote the caption: “Happy birthday godson, all the best! Together forever …. @kenedy”
Chelsea are currently gearing up for their Premier League trip to Burnley on Sunday afternoon as they look to continue their march towards the title.
Conte’s side are flying high at the top of the table and are nine points clear of second-placed Tottenham after 24 games.
Their sharp upturn in form this season has been in stark contrast to their struggles lsat term, when they ended up 10th and without a trophy.
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