Flustered Champion Ostapenko falls at first French Open hurdle

Tennis - French Open - Roland Garros, Paris, France - May 27, 2018 Latvia's Jelena Ostapenko reacts after losing her first round match against Ukraine's Kateryna Kozlova REUTERS/Pascal Rossignol

PARIS (Reuters) - A flustered Jelena Ostapenko became only the sixth female Grand Slam champion to fall at the first hurdle of her title defence on Sunday when she lost to Kateryna Kozlova at the French Open.

Never at ease on the Roland Garros main show court, the world number five slumped to a 7-5 6-3 defeat to a Ukrainian opponent who had won both the pair's previous meetings.