Re: Will a top 5 player win the Gold Medal
So basically the question is will Serena Williams or Jankovic win the gold. Jankovic certainly will not. I don't know what will happen in her next match. She might not play at all. If she does I think she has a good chance of winning as her opponent Alona Bondarenko is just coming back from an injury herself and on in the basis of Alona's scoreline in her last match certainly doesn't seem any more fit than Jelena. But Jelena is unlikely to progress much beyond that, if she plays at all.
Serena on the other hand has very good chance to win the gold. I would say right now she is the favourite to do so. But I wouldn't say she was an odds on favourite. I'd probably give her a 30 maybe 35% chance on winning the Olympic gold. Other players like Safina, Venus Williams, Dementieva, Zvonereva, Radwanska, Li and Zheng have chances too, albeit smaller ones than Serena, but add their chances up and the total is greater than that of Serena.
So to answer the question, maybe, there is a reasonable possibility. But on balance, more likely no than yes.