No RETURN THEM! My friend looks exactly like yours and his were returned with NO Problem.
What he means to say is that you can return them. There really isn't a need to yet because it is such a small hole, but you could essentially claim the warranty right now. Mine were a lot more worn down on the soles, but after you burn through the rubber you'll see the white-ish color underneath. If you've got a few months still, keep using them, they will last a lot longer. However, if you're like me and like to claim your warranty ASAP to get another pair, send them in now.
#TeamYonex, #TeamSolinco, Prince Neos 1000