The Brazil international was initially concerned about his plans for 2014 after hurting his ankle Thursday.
The 21-year-old Brazilian limped out of Thursday's match with an ankle injury that was later deemed only a strain of the tendons.
“At the time, I thought it could be a serious injury, and I thought about my plans for 2014,” Neymar explained on Instagram. “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 host Brazil opens the tournament June 12 when it hosts Croatia.