Southlawn (f, 3, Pioneerof the Nile--Mo d'Amour, by Uncle Mo), a runaway, eight-length optional claiming winner at Fair Grounds with first-time Lasix in her sophomore debut Feb. 17, ran back to that effort in a big way to upset Saturday's GII Fair Grounds Oaks. Drawn on the fence, the 7-1 chance trailed the field of five heading into the clubhouse turn. Southlawn traveled nicely in an inside fourth down the backstretch and set her sights on the top two as they straightened. Last out GII Rachel Alexandra S. heroine and...