NEW DELHI (Reuters) - South African trio Dale Steyn, JP Duminy and Imran Tahir are nursing injuries but the team management said on Sunday there was nothing to worry about. Pace bowler Steyn suffered a bruise on his right side at the Services Cricket Ground and did not take further part in the warm-up session. During training, Dale bumped into Graeme (Smith), so just a slight bruise on the right side, team spokeswoman Lerato Malekutu said by telephone. Tahir and Duminy did not take part in the practice at all. Imran has a slight respiratory tract infection and JP has got a lower back stiffness after his batting the other night (against West Indies, he said . Tahir made a dazzling debut against West Indies, claiming four wickets, while Steyn is S.Africas pace spearhead. S.Africa take on the Netherlands in their next World Cup Group B match in Mohali on Thursday.