A smooth French combo guard with a good frame, wingspan and athleticism, Mathis Keita often served as INSEP's main offensive facilitator, playing both on and off the ball. A limited perimeter shooter due to his poor mechanics and elevation, Keita nonetheless made the occasional jumper in catch and shoot situations.
He can create his own shot effectively and change directions nicely on the fly, being very limited with his left hand but being able to get to the rim fairly well regardless. He's not a great finisher due to his average toughness and explosiveness, but emerged as a very good decision maker in the half-court, willingly making the extra pass, particularly on the drive and dish.
Defensively, he is quite effective thanks to his physical tools and intensity level. Not exactly overflowing with long-term upside, unless he can substantially improve his playmaking ability and perimeter shooting, we'll have to see how he continues to develop down the road.