This is not the first time Steyn teased his teammate de Kock.
31 year old Steyn is the most experienced player in the South African team after Kallis and Boucher retired. He posted a photo on twitter of de Kock taking a nap and he officially declares himself as an old man to look after the new kids.
Well, he enjoys teasing the young man by taking his snaps while he is sleeping.
South Africa is now almost ready to set another date with Australia in the final of the tri-series to be played on Saturday 6th September 2014.