The Indian team's worries ahead of its opening World Cup game against Australia has been compounded by in-form Shubman Gill's health issues and the batter is a doubtful starter for Sunday's match. Ishan Kishan could be in line to open in case Gill is ruled out. Gill, India's most prolific batter in ODIs in recent times, is reportedly down with high fever and will be tested for dengue on Friday before a final call is taken on the matter.