IOC vows "toughest sanctions" after report confirms Moscow's broad collusion in doping

By Steve Keating TORONTO (Reuters) - With the Rio Games less than three weeks away, the International Olympic Committee on Monday promised "the toughest sanctions available" after a report found Moscow had concealed the positive doping tests of athletes in many sports in the run-up to the Sochi Winter games. The IOC did not spell out whether it would heed growing calls for Olympic bans already imposed on Russia's track and field athletes and weightlifters to be extended to all its competitors in