Indian captain Mahendra Singh Dhoni won the toss and elected to bowl in the fourth one-dayer against Australia in Mohali on Monday.With opener Gautam Gambhir nursing a neck injury, India have brought in Virat Kohli in the side. Other opener Virender Sehwag, who suffered a foot injury in the last match in Delhi, is, however, fit to play.For the injury-ravaged Australia, Shaun Marsh comes in place of Adam Voges.Teams:India: Mahendra Singh Dhoni (capt), Virender Sehwag, Sachin Tendulkar, Virat Kohli, Yuvraj Singh, Suresh Raina, Ranvindra Jadeja, Harbhajan Singh, Ashish Nehra, Praveen Kumar, Ishant Sharma.Australia: Ricky Ponting (capt), Shane Watson, Cameron White, Mike Hussey, Shaun Marsh, Moises Henriques, Mitchell Johnson, Graham Manou, Nathan Hauritz, Peter Siddle, Doug Bollinger.