Neymar, Bruna Biancardi Split One Month After Child's Birth

Neymar and his longtime girlfriend Bruna Biancardi have called off their relationship … just a few weeks after their baby daughter was born.

Biancardi announced the news in a social media post early Wednesday morning … saying in her native tongue, “This is a private matter.”

“But,” she continued, “as I am exposed to news, assumptions and jokes on a daily basis, I inform you that I am not in a relationship.”

“We are Mavie’s parents, and that is the reason for our bond. I hope that this way they will stop relating to the frequent news. Thank you.”

The split comes just days after Neymar was accused of sending X-rated messages to a Brazilian OnlyFans model. The soccer superstar, however, denied wrongdoing in the case … saying on his social media page the leaked DMs were from “years ago.”

But, the messages were certainly not the first time the Al-Hilal striker had allegedly been unfaithful toward Bruna — as he was spotted on camera in a nightclub earlier this year getting close to two women.

Despite the allegations, Neymar and Bruna had seemed to be going strong … with the two sharing loving pictures together often over the last few months.