1Former President Clinton meets with Nelson Mandela .
2Former U.S. President Bill Clinton paid a visit to South Africa 's Former President Nelson Mandela on the sidelines of the World Cup tournament .
3After the meeting , Clinton spoke at the Nelson Mandela Foundation Thursday , praising Mandela 's life and encouraging the celebration of the former South African leader 's legacy .
4He said Mandela 's birthday should be a day of service .
5Clinton also congratulated South Africa for the work it has done to host the World Cup saying the country has been given a chance to set a standard from which the world can learn .
6Nelson Mandela Day is celebrated yearly and occurs on July 18 , his birthday .