RIO DE JANEIRO -- It seems everywhere you turn in track and field right now theres bad news.Two days before the track competition starts at the Rio de Janeiro Olympics, IAAF President Sebastian Coe said Wednesday that hes not confident there will be full crowds.Are we going to have full houses? I dont know the answer to that, Coe said.The Rio crowds could have given Coe a rare positive to highlight in a news conference that was almost completely about the negatives: Doping, banned athletes, previously banned dopers being able to compete in Rio, and what the IAAF is doing to change the way it works after 12 months that rocked the sport and its governing body to the core. Along with the huge doping scandal in Russia -- Coe called it cataclysmic -- corruption crept into the IAAF, too, under former president Lamine Diack.Yes, the last year has sorely tested all of us and Im very clear about it, it has sorely tested our fans and supporters out there, Coe said. We have to be mindful of where weve come from, but our responsibility now is to shape the future.Many of the questions posed to Coe at the IAAFs beachside hotel in Ipanema dealt with how the International Olympic Committee had taken different approaches to the IAAF when it came to Russias extensive state-sponsored doping scheme.Coe tread carefully, but hinted at what are clearly differing opinions between the two.One of the issues presented to Coe: Doping whistleblower and 800-meter runner Yuliya Stepanova, who was crucial in helping to reveal Russias wrongdoing, wasnt allowed by the IOC to compete at the Olympics while sprinter Justin Gatlin, banned twice for doping, can.It is the IOCs event, Coe said. But he also offered this: If athletes are prepared to stick their heads above the parapet and help, then we should recognize that.Speaking about Gatlin, Coe, who would prefer dopers be banned for life, said: I cant change my view on that, but he is eligible to compete and he should be accorded the same courtesy that any athlete within those codes and those rules is accorded.And Coe was asked about the IOCs decision to back away from a ban on all Russian competitors at the Olympics despite the countrys state-sponsored doping, when the IAAF took the bold decision to ban all Russian track and field athletes.Organizations made judgments that they presumably felt was in the best interests of those organizations, Coe said. We certainly made a judgment in athletics. The IOC made a judgment, it was endorsed by IOC members, and Im not sure I can add any more than that.Where the IOC and the IAAF are together is a preference for life bans for serial dopers -- someone like Gatlin. Following IOC President Thomas Bachs announcement that the Olympic body might pursue the possibility of life bans again -- life bans have twice been struck down by sports highest court -- Coe said the IAAF would be open to that.With the body facing a long road back to winning fans trust, the IAAF council had this week ratified proposals to change the way it works, Coe said. Those proposals will go to a special congress of all the sports national federations in December to be voted on and hopefully, he said, approved. The changes included setting up a body completely independent of the IAAF to deal with the sports doping and ethics issues.No change was not an option, Coe said. Jay Novacek Jersey . The 31-year-old Spain midfielder hasnt played since Madrid lost in the Copa del Rey final to Atletico Madrid in May due to back and foot injuries. Tony Dorsett Jersey . Tracey comes to the Blue Bombers after spending over a decade with Queens University. 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Wallabies back Christian Lealiifano has been diagnosed with Leukaemia.The Brumbies co-captain, who was not named in the Wallabies squad on Friday is currently in hospital receiving treatment.The Brumbies said, in a statement, that after a brief illness, investigations revealed the disease.At the moment its just a matter of ensuring Christian receives the best care and support he can at this time, Brumbies chief Phil Thomson said.He is one of the most respected players within this group and this news has come as a huge shock to all of our players, coaches and staff.Everyone knows that Christian is an amazing young man, an important member of this team and of the Canberra communiity.ddddddddddddARU boss Bill Pulver, who is in Rio to watch the Aussie Sevens team at the Olympics also gave Lealiifano his full support.We were shocked to receive the news of Christians diagnosis yesterday and our thoughts are firmly with him as he begins his treatment,Pulver said via a statement.Anyone who has ever had any involvement with Christian knows he is an outstanding young man, as well as being an exceptionally talented rugby player, and the ARU will do whatever it can to support Christian and his family now and throughout his treatment. 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