The Brazil international was initially concerned he would miss this summer's tournament on home soil after damaging ankle tendons against Getafe on Thursday night
The 21-year-old Brazilian limped out of Thursday's match with an ankle problem but he has since been given positive news that the injury is only a strain of the tendons and will rule him out of action for a month.
“At the time, I thought it could be a serious injury, and I thought about my plans for 2014,” Neymar explained via social media.
“[But] don't worry. I’ll do everything right and I’ll be back soon.”
The Selecao talisman also took time to thank fans for their support during a frightening 24 hours.
“What a scare! But Jesus, once again, was by my side. Thank you to everyone who prayed for me.”
World Cup hosts Brazil open the tournament on June 12 when they host Croatia.