The odds of the Federer twins winning a Wimbledon doubles title in the future have dramatically shortened after Roger Federer and his wife Mirka announced the birth of a second set of twins.

The Swiss tennis ace revealed the amazing news on his Twitter account just hours after he announced he was pulling out of the Madrid Masters to be at the birth: "Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! #TwinsAgain#Miracle."

The two boys were born almost five years after the arrival of their twin sisters Myla Rose and Charlene Riva in July 2009 triggered a flurry of good-natured jokes about future doubles champions.