In Rio Olympics, Sania Mirza and Rohan Bopanna will play their Mixed Doubles semi-final match tonight. They will take on the American team of Venus Williams and Rajeev Ram. If India win, it will be assured of at least a Silver medal. In Shooting, Mairaj Ahmad Khan will be seen in action in the second day of Qualifications of Skeet, while Gurpreet Singh will figure in Stage-II Qualification of 25 metre rapid fire pistol category.In Athletics, Lalita Babar and Sudha Singh will feature in the heats of 3,000 metres steeplechase event, with Nirmala Sheoran featuring in the 400 metres race.The Indian women's Hockey team will play its final group game against Argentina. India need to win this game and then hope Japan lose to Australia to make it to the quarterfinals.United States continues to lead the medals tally with 20 Gold, 13 Silver and 17 Bronze. China is second while Great Britain has replaced Japan to third.