Zuniga wrote on his Instagram account: "I feel burdened by this situation. It resulted from a normal play and there was no bad intention, evil or recklessness from my part.
"I want to send a special salute to Neymar. I admire you, I respect you and I consider you one of the best players in the world.
"I hope you recover soon in order to continue to show us that in football there is a sport full of virtue and qualities, which I have put into practice since I was 12 years old and as a professional player."
FIFA have announced that they are analysing the incident to determine whether to take action against the Colombia defender.