Gnagnon loved an outstanding step forward marketing campaign at Rennes final season, making 30 appearances throughout all competitions.
And the 20-year-old’s performances seem to have stuck the attention of Premier League champions Chelsea.
The France Under-20 world admits the Blues’ pastime was once “very flattering”, however was once glad to proceed at Rennes.
Gnagnon instructed FootMercato: “Yes, it took place in no time. Two years in the past, I used to be in CFA [French amateur league].
“I performed my first season [at Rennes], then the second one.
“I pay attention we are speaking about Chelsea and plenty of different golf equipment, needless to say it is very flattering. [But] I used to be glad.”
Borussia Dortmund have been additionally mentioned to be concerned about Gnagnon, however the teenager felt he would get much less recreation time at both Chelsea or the German outfit.
Gnagnon added: “It was once in point of fact no longer simple to be truthful.
“After that, I needed to glance the reality within the face, this is, if I went to Chelsea straight away, I used to be no longer positive I might be taking part in.
“You’re going to [Borussia] Dortmund, you are no longer positive you are taking part in both. Whether I went to the correct or left, I used to be no longer positive I used to be taking part in.
“I weighed up the professionals and cons with my entourage and my agent and we idea that it was once higher to do yet one more season at Rennes. It was once no longer simple however we had to select.”