Olympic bronze medallist Tasha Danvers will miss the rest of the season after a series of injury problems.
The hurdler, who won bronze in the 400m hurdles at the 2008 Beijing Games, raced only once last year, having recovered from injury setbacks in 2009.
The 33-year-old will now miss the World Championships in Daegu, South Korea, which starts on Saturday, August 27.
