"Yes, it's true. Sabia is pregnant," 30-year-old Rafael told a German newspaper. "But we do not want to comment on this as it is very early in the pregnancy."
Some had suspected that Sabia, whose ex-husband is Rafael's former team mate Khalid Boulahrouz, was pregnant when she was seen affectionately touching her stomach while watching Rafael play for German team Hamburg.
Sabia and Rafael
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Mother-of-two Sabia, 35, is due to give birth in spring 2014.
Following the news of Sabia's pregnancy Dutch model Sylvie, who has son Damien with the former Tottenham Hotspur footballer, has said that she "wishes the couple well."
Slyvie and Rafael's relationship made headlines in January when the couple split after he assaulted her at a New Year's Eve party.