The English central midfielder is nearing full fitness, after he spent time with the rest of the squad during their winter break.
And Kante, who has gone through his own injury issues this term, admits having the all action midfielder back is a huge bonus.
Kante told the club website: "Ruben is a good player. He can bring a lot to the team. He was doing very well last season and it's good to have him back with us in training.
"We hope he can help us to achieve what we want.
"I believe we have the team to get what we want this season - to finish in the top four, get Champions League football next season and why not to win a title as well. We have everything that we need in this team."