With several of her main threats on the treatment table rather than the tennis court, world number one Caroline Wozniacki may never get a better chance to break her grand slam duck and win the French Open. The Dane is reminded every day by commentators, journalists and the yawning gap in the centre of her trophy cabinet that a major title still alludes her but all that could change over the next two weeks. The way the glamorous 20-year-old reacts with frustration to questions about whether she deserves her top-ranked status given her lack of success in the sport’s showpiece events suggests the millstone round her neck is weighing her down. Salvation may come when she enters the Roland Garros locker room and sees Dinara Safina, Serena Williams and sister Venus Williams all missing. Former world number one Safina is taking an indefinite break, Serena and Venus are still not fit while Kim Clijsters has only just returned having been out for two months.