His insight on the gaffer comes days ahead of their preliminary World Cup qualifier against the Comoros Islands over two legs.
Gyan added that the playing body was satisfied with the coaching methods employed which has enabled players to add to their knowledge on the game.
“Grant is someone who is really close to the players and he is funny.
“He is a good motivator and a teacher and tactically he is one of the best.
“He has got his own unique style of doing things and we are comfortable with it and ready to abide by his instructions,” he told reporters present at the team’s training.
Grant has his full squad available and is expected to hold a final training session before they depart for Comoros tonight.