Chat with us live during the women's 100-meter hurdles final when the USA's Lolo Jones tries to make her big Olympic comeback. Jones, as you may recall, was a favorite to win gold in 2008 but clipped a hurdle, stumbled and finished seventh.
The three-time USA indoor champion and a two-time world indoor champion has become a crowd favorite after successfully recovering from spinal surgery last summer and battling to make the 2012 Olympic team.
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