Caroline Wozniacki at Roland Garros 2012. Sunshine in Paris.
Pictured is a two piece set, the adidas by Stella McCartney Tennis Performance Skirt, $95 with a flattering drape and wide elastic waist and the matching Tennis Performance Tank, $80, which has an open neck, loose blouson fit and closefitting waistband that pulls neatly over the skirt top. Mesh overlay makes the back quite interesting (see pic) and decorative topstitching and bow at neck adds fun. No bra built in. The visor is tomato red, $30 which is picked up in the shoes below.
Be careful with this lemon color if you are super pale. The top also comes in tin grey and core blue for those of us that can't wear bright yellow.