Jean-Marie Abeels reared the £10million midfielder at his JMJ Youth Academy on the outskirts of Nairobi and is in weekly contact with his parents.
Abeels told the Daily Mail: "'Victor's father Noah calls me almost every week and he tells me Arsenal's interest is big.
"Wenger spoke to Celtic around a month ago and Victor's father and his mother Mildred says he would prefer to go there before any other club.
"I will be speaking to his parents again in a week's time and Victor also. But I already know that Arsenal have a big interest in the player.
"Everything can change in a minute. It takes just one phonecall. It's all a bit of a show at the moment. It's all a game. It's all about money.
"But Victor wants to go to a club where he will play.
"He is still young and I have told him he needs to be careful about when he takes the really big step. I think myself that it's better that he has a step in between before going to the really big level."