Bolt set for Blake showdown in 200m
Bolt won his semi-final in 20.26 seconds, while Blake cruised to victory, recording an impressive time of 19.93. A firing of the false start gun again plagued Bolt, though it did not result in any disqualification for this event.
After again struggling from the blocks, Bolt registered the fourth fastest qualifying time, meaning he may need to win the final from an outside lane.
Blake, Warren Weir (19.99) and Nickel Ashemeade (20.15) all ran faster than Bolt on Saturday evening, with the first three finishers in Sunday's final to earn spots at the London Olympics.