The famously-private Vettel has neither a Facebook page nor a Twitter profile, so he could not confirm the news via social media.
Jan.19 (GMM) Sebastian Vettel is yet to confirm reports he is now a father.
We reported earlier this week that the reigning quadruple world champion's partner Hanna gave birth to a baby girl last Sunday.
News of their impending parenthood broke only last December, when Hanna Prater - rarely seen in the F1 paddock - was reportedly eight months pregnant.
The birth of their child in a Swiss hospital caused a stir among his fans, but the famously-private Vettel has neither a Facebook page nor a Twitter profile, and so he could not confirm the news via social media.
And now Bild newspaper reports that the 26-year-old's management declined to confirm or deny the reports about Vettel's fatherhood.
Before that, Vettel's well-known trainer was Tommi Parmakoski, another Finn.
And Sport Bild reports that Vettel's new trainer is yet another Finn, Antti Kontsas, who formerly worked with Toro Rosso driver Jean-Eric Vergne, and Red Bull reserve Sebastien Buemi.
All three Finns - Parmakoski, Huovinen and Kontsas - have links to the former McLaren doctor Aki Hintsa, who is close to Vettel.