India's white-ball skipper Rohit, who was also the designated Test vice-captain for the tour of South Africa, sustained a left-hamstring strain during a net session just prior to the team's departure for the tour and had to pull out.

from Times of India https://timesofindia.indiatimes.com/sports/cricket/news/rohit-sharma-close-to-getting-match-ready-likely-to-be-available-against-west-indies/articleshow/88949166.cms