Correctional Services said that “matters are under control” at Johannesburg’s Sun City Prison on Wed.
The global energy soft drink company recruited 448 boys and girls from various Safa-affiliated clubs in all the nine World Cup host cities.
The ball crew members were responsible for giving the ball back to the players during matches.
In the past they were known as ball boys but the title was changed this year after the inclusion of girls.
Mogodi, president of Soweto Football Association, said: "For that was one of the legacy projects of the World Cup for amateur soccer.
"It's a dream come true for these youngsters. I thank Powerade for affording them a rareopportunity to rub shoulders with soccer stars such as Didier Drogba, WayneRooney, Aaron Mokoena, Lionel Messi and Steven Pienaar."