No deadline on Russia return

IAAF president cuts ties with sports giant Nike

The question of whether Russia will take part in next year's Olympic Games was no clearer on Thursday after IAAF president Sebastian Coe held a news conference dominated instead by his personal relationship with Nike.

Russia was banned from athletics two weeks ago after a report by the independent commission of the World Anti-Doping Agency detailed systematic, state-sponsored doping and related corruption in the country that had "sabotaged" the 2012 Olympics in London.