"If everybody competes like they did this year, I'd say Yohan Blake is going to win," Greene told BBC Radio 5 live. "He's the world champion so his confidence is getting higher and higher all the time. Remember they train together and the way it sounds to me, he [Blake] seems to be the dominant person in the 100m in their training group. So everyday they are training together, his confidence is getting bigger and bigger. When they come to the Games, if Usain is still having those problems, Blake's confidence level will be through the roof and he's going to be hard to handle. Usain has trouble in close races. If you think about the close races he's had, he's lost [them]."