Second set of twins for Federer

Madrid - Roger Federer has announced on Tuesday that his wife Mirka had given birth to the couple's second set of twins, this time boys named Leo and Lenny.

"Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! Twins again.. miracle!" Federer wrote on his official Facebook page.

The couple already have four-year-old twin daughters.

The 17-time Grand Slam champion had announced on Tuesday morning that he wouldn't be competing at the Madrid Masters this week to spend time with his family in preparation for the birth.

"I've decided to withdraw from Madrid to be with my wife Mirka during these next few exciting weeks for our family," he said.

However, he is expected to return to action for the French Open in Paris later this month.