The Blues lodged their appeal against FIFA's ruling last Friday and Ofori-Twumasi told tribalfooball.com that Kakuta has the mental strength to cope with the situation.
The England U20 international said: "As we all know there has been a lot of attention on Gael at the moment.
"From my point of view he has taken it very well but then again its none of my business. He's a great footballer but clearly strong mentally as well because he comes to training everyday with a big smile on his face and enjoys his football.
"A couple of days after the news broke he played an international tournament with France, scored two goals and got voted player of the tournament; I think that says a lot about the guy."