Chisholm's trip continues.
Sunderland's international development coach, Gordon Chisholm, hit the training ground on Thursday to work with some of Bidvest Wits' young stars.
The former Sunderland man put the South African Premier League club's reserve squad through their paces at their academy facility.
He also led a coaching session with the U17 squad in the afternoon.
Chisholm will take in the Clever Boys' clash with Ajax Cape Town on Friday before returning to the UK.
He has also spent time with partner club Asante Kotoko in Ghana during the trip, focusing on youth development as well as meeting various club figures.