In domestic rugby he plays for Cape Town's provincial side, the Stormers. This is why local football club Cape Town City was so honoured for his appointment.
City coach Benni McCarthy was also proud of Siya Kolisi. Here's how a few others reacted to the news, including soccer players who liked the following Tweets.
Congrats to Siya Kolisi, finally appointed Springbok captain. Should have happened 2 years ago.— Jean Smyth (@JeanSmyth) May 28, 2018
Massive congratulations to Siya Kolisi for being appointed the Springbok captain. I know #TheRoomDividers kings @robertmarawa and @TandoManana are over the moon now. This should have happened long ago. Kolisi deserves to be a full time captain!!! pic.twitter.com/i8baO4Wyx9— BONGANI (@PANGELABONGS) May 28, 2018