De Kock replaces Du Plessis in South Africa squad

 De Kock replaces Du Plessis in South Africa squad,
The 20-year-old wicketkeeper-batsman replaces Faf du Plessis, 
who will rest a lower back problem that has also ruled him out of the first four weeks of the Indian Premier League, where he plays for the Chennai Super Kings. 
Johannesburg, Tue, Mar 19 2013