Massaro ready for San Fran defence
The current world No.4 and former No.1 is the top seed for the tournament in San Francisco, California, but will have a challenge on her hands to win the Championships again.
The competition has attracted a high class field, with legendary Malaysian star Nicol David the second seed, while English pair Sarah-Jane Perry and Emily Whitlock have also confirmed their participation.
Massaro takes on Ireland’s Aisling Blake in the opening round, in a match which is due to get under way in the early hours of tomorrow UK time. David opens up against Egypt’s Heba El Torky.