Blake and Bolt set to clash again in 200m

Yohan Blake and Usain Bolt will square off in Sunday's 200 metre final just two days after Blake upset Bolt in the 100 metres at the Jamaican Olympic Athletic Trials. Blake won his semi-final in 19.93 seconds Saturday to set up another duel with Bolt who took his semi-final race in 20.26. Bolt was the fourth fastest qualifier. Blake was pushed in his race by Warren Weir who ran a personal best 19.99. The first semi-final was won by Nickel Ashmeade, who clocked 20.15 on the National Stadium track. Blake produced one of the biggest track upsets of the year by beating Bolt in Friday's 100m final, becoming the fourth fastest man ever in the event. In the women's 200m, the three favourites -- Shelly-Ann Fraser-Pryce (22.55), Kerron Stewart (22.96) and Veronica Campbell-Brown (22.79) -- all won their semi-finals. The women's 200m final is also Sunday.