Why Siya Kolisi was made Springboks captain

After appointing Siya Kolisi as skipper for the June tests against England, Springboks coach Rassie Erasmus explained his decision to hand the forward the team’s captaincy. 
Kolisi becomes the first ever black to skipper the former world champions in their 127 years of existence and Erasmus refuted claims that race might have played a role in the appointment.
“I wouldn’t like to look at it that way. I know Siya is a good leader and I am excited about what he can offer us‚” Erasmus said.
“I coached him since he was 18 years old when he arrived at the Stormers from the Eastern Cape and through the academy until he played for the Stormers.”
“I know him as a good rugby player. This year he has gone through some tough times with form as captain of the Stormers but he is a great leader.I like him because he is humble‚ he is quiet and the way he is playing at the moment he is not flashy,”he added.
“With the breakdown work he is doing in attack‚ the carries and clean-outs‚ he is playing almost like a blindside flanker.”
Erasmus named a 43-man squad for the June assignments on Saturday with 17 uncapped players among them Makazole Mapimpi making the cut.