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Ovince St-Preux knocks out T.J. Cook with a punch during the Strikeforce event at Valley View Casino Center on August 18, 2012, in San Diego California. (Credit: Tracy Lee)

Strikeforce: Rousey vs. Kaufman

August 23, 2012

Ronda Rousey and Sarah Kaufman headlined the Strikeforce card on Saturday, August 18, at the Valley View Casino Center in San Diego, Calif. Photos taken by Tracy Lee, special to Yahoo! Sports.