I don't see him worthy of beeing in the green's in pass and SA. These numbers putting him in a decent and reasonable level but his game is just running and dribbling, always oscillates in the finishing of the play, kicking or passing. Comparing him with players with the same function, there are a significant technical difference (in pass and kick) between him and Dudu, G.Jesus, Marquinhos Gabriel even in the first touches, im judge him in the white area in SA and would SPA between 74-75 and DA>BC. Dont see any problems for a white zone in atk too, he isnt a dangerous player and is very very very far to be dangerous as Dudu, G. Jesus, M.Gabriel, M.Bastos etc.
His DA is a little better than 81 and im really like his defensive participation because often defending like a SB, fold the marking in the side very well, his replacement is excellent. Kelvin is a player with great enthusiasm, has a strong personality and is a true dribbler player but weak in the passing and shooting, putting his game in a limited level.
This set just not showing the essence, the real virtues of his game and leaves him with generous numbers in some atributtes that he isn'tgood, atributes that limits him.
DEF + STA + DA + MEN should be higher. ATK, SPA, SPS, BC and SA should be lower.