Kianga, 18, has impressed on trial during pre-season at Grantham, and has signed a deal for the upcoming season.
Manager Martin McIntosh said: “It’s a real delight to have Manasse on board with us this season.
“He’s been a young talent that I have been aware of for a while now and someone who I think will really excite the fans.
“His understanding of the game is good for someone of his age and is a real handful for defenders with his close control dribbling whilst also not being afraid to have a shot at goal too.”
Keep up-to-date with our exclusive email newsletters.
Digital advertising by Minute Media
© Pitch Hero Ltd 2008-2021