The Tottenham midfielder, who finished last season on loan at Everton, has been charged following an alleged attack on the son of a South African government official
The 30-year-old midfielder who finished last season on loan at Everton was arrested by police after he handed himself in following the incident at the Icon club in Johannesburg.
Pienaar appeared before Randburg Magistrates Court last Wednesday, facing charges of assault against Thabang Mnisi, the son of South Africa's deputy minister of public service and administration, Ayanda Dlodlo.
It is reported that Pienaar and a group of friends attacked Mnisi on June 17, punching and kicking him in head several times following a row over the usage of the toilet in the club's VIP area.
Pienaar signed for Everton in 2007 and enjoyed four successful years on Merseyside before joining Tottenham in January 2011. However, the South African struggled to cement a place in the starting XI at White Hart Lane and returned to Goodison Park on loan at the beginning of 2012.
A spokesman for Tottenham said that they were aware of the story but would not make any comment until they "had the chance to speak to the player and his representatives".
The midfielder is no stranger to brushes with the authorities after being convicted of drunk driving in 2010 and banned for 12 months. The 30-year-old was also arrested two years earlier after allegedly assaulting a woman in a Liverpool flat, although the charges were later dropped.
Pienaar is currently on holiday in the Caribbean, but must reappear before the court on July 4.