Sinclair was unavailable for comment yesterday as she prepared for Saturday's NZ Conference Elimination Final against Southern Steel in Hamilton.
She was one of 30 players named this week to attend a three-day training camp with the Silver Ferns in Auckland at the start of July.
Another trialist who cut their teeth on Rotorua's school courts will be former Rotorua Lakes High School student Erena Mikaere, who currently plays for West Coast Fever in Perth.
Twenty-six year-old Mikaere made history last year when she became the first Kiwi to be imported by an Australian franchise, joining West Coast from Southern Steel.
West Coast are preparing for an elimination final of their own this weekend.
Neither Mikaere nor Sinclair are likely to be in contention for the Silver Ferns squad travelling to Sydney for the World Cup in August - but if they impress selectors at the camp, they could feature in the Constellation Cup against Australia later this year.
Players attending the training camp can also be selected for an NZ A team to play pre-World Cup games in Sydney.