Soccer superstar Neymar is apologizing for “mistakes” he’s made that jeopardized his relationship with his pregnant girlfriend, model Bruna Biancardi.

The 31-year-old Paris Saint-Germain forward took to Instagram on Wednesday to share a snapshot of himself and Biancardi, and wrote a lengthy apology, after explaining why he was going public with his actions.

“I do this for both you and our family,” Neymar wrote in the caption, via translated text. “Justify the unjustifiable[?] No need to. But I need you in Our lives.”

“I saw how much you were exposed, how much you suffered with all of this and how much you want to be by my side. And I stand beside you,” he continued. ”

The soccer star admitted, in no specific terms, that he “did wrong with you all,” and that he felt particularly bad because it hurt “one of the most special people in my life. The...