Obi admits Eto'o was "like a father to me" before he left Inter for his bank busting move to Anzhi in the summer.
The Nigeria international midfielder said: "We will miss him very much, because he is a great player not only on the field, but also outside.
"He really helped me and Inter's other young players to improve in the game. We're all very loyal and I hope God will follow him wherever he goes.
"Eto'o is humble, kind and always intervenes when there is some misunderstanding on the field. He was like a father to me and feels very much missed."