Ana Ivanovic hit the practice courts ahead of the first day of play at the 2013 French Open.
Elsewhere, Laura Robson and Eugenie Bouchard were also having an all-teenager hitting session.
Madison Keys, one of the brightest young rising stars of American tennis, was also out there.
Ivanovic proved practice makes perfect as she stormed out to a lopsided first set in her match.
Petra Martic was on the receiving end of a 61 36 63 decision against the 2008 French Open winner.
Another Roland Garros standout, 2012 runner-up Sara Errani, was also among Sunday's early winners.
Martina Hingis was cheering from the sidelines as her pupil was fighting back from 64 42 down...
And Anastasia Pavlyuchenkova completed the mission, edging Andrea Hlavackova, 46 76(5) 64.
Yulia Putintseva rolled past Ayumi Morita in straight sets to set up a second round with Errani.
Elsewhere, No.32 seed Sabine Lisicki made the next round with a 63 64 win over Sofia Arvidsson.
And another German, qualifier Dinah Pfizenmaier, dispatched Mandy Minella to do the same, 75 61.
Monica Puig scored her first Top 20 win with a nail-biting upset against World No.11 Nadia Petrova.
Virginie Razzano, one of the Cinderella stories from this event a year ago, also won her opener.
There would be no fairytale ending for Venus Williams in the last match of the day, however.
Urszula Radwanska outlasted the former World No.1 in three hours and 19 minutes, 76(5) 67(4) 64.