Ella Parker connected with a three-run blast to lift coach Patty Gasso and the OU softball team over Tennessee 4-3 to begin the Women's College World Series Thursday at Devon Park in Oklahoma City.

Two pitches later, Parker made magic happen for the Sooners, sending Pickens 0-1 offering to straight away centerfield to give the Sooners the improbable 4-3, walk-off win over the Volunteers. Parker had two hits in the game.

Tennessee softball faces elimination against Florida on May 30 in the Women's College World Series in Oklahoma City. Follow live updates.

Tennessee softball lost its WCWS opener on a walkoff homer from Ella Parker. Karen Weekly explains why they didn't consider walking Parker.

Karlyn Pickens struck out 11 batters and Tennessee staved off elimination beating Nebraska 3-2 in the Knoxville Super Regional

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