The tennis star, 32, and his wife Mirka welcomed twins — again! — on Tuesday, May 6, he announced on Twitter shortly after the birth.

“Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! #TwinsAgain #Miracle,” Federer Tweeted.

It’s the second set of multiples for the couple, who are already parents to 4½-year-old identical twin daughters, Myla and Charlene.

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With the arrival of his sons, Federer — who confirmed in December that his family of four was expanding — pulled out of the Madrid Open on Tuesday.

“I’ve decided to withdraw from Madrid to be with my wife Mirka during these next few exciting weeks for our family. I apologize to my fans and hope to be back in Madrid next year. I’ll be training near my home, and am excited to rejoin the Tour soon!” he posted on Facebook.