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 two boys, Leo and Lenny, were born almost five years after the arrival of their twin sisters Myla Rose and Charlene Riva in July 2009.
Bookmakers have offered odds of 100-1 of the sisters emulating their famous father by teaming up to win at the All England Club but those odds paled into comparison with the chances of another set of twins.
Federer is not the first famous sportsman to have twins, Michael Jordan and Pele did as well, but two sets is a rarity.
Federer's older sister Diana also has twins and there had been some speculation earlier that his wife Mirka, a former professional tennis player herself, was expecting twins again but the couple managed to keep it a well-guarded secret.