LONDON - Britain's Tiffany Porter has stunned Australia's Olympic 100m hurdles champion Sally Pearson at the Anniversary Games with a timely warning ahead of their Commonwealth Games duel.
The US-born Porter won Sunday's race at London's Horse Guards Parade in 12.71 seconds despite Pearson enjoying the better start.
American Brianna Rollins, the world champion, was second, with Pearson clocking 12.79 back in third.
"It's a confidence boost and things seem to be clicking at the right time, so hopefully I can go out and do my very best at the Commonwealths," Porter said.
"You can't ever count Sally out, she's a great competitor, but I am going into it hoping to go away with the gold, We don't train for second place."
In the men's 100m, Michael Rodgers of the United States won in 9.91, with 2003 world champion Kim Collins, now 38, taking second place. Jamaica's Nesta Carter was third.
Allyson Felix of the United States defeated double Olympic champion Shelly-Ann Fraser-Pryce of Jamaica in the women's 100m at the meeting held to celebrate the second anniversary of the 2012 London Olympics.
Polevault world record holder Renaud Lavillenie of France took victory in 5.70m, ahead of British duo Luke Cutts and Steve Lewis.