[4][5] The all-time leading goal scorer and most-capped player of the Canadian national team, Sinclair was also its captain.
[1][6] Sinclair made her debut for the senior team at age 16 at the 2000 Algarve Cup where she was the tournament's leading scorer with three goals.
[1] She scored seven goals for Canada at the 2002 CONCACAF Women's Gold Cup, which tied for the tournament's lead.
[1] At the 2012 London Olympics, Sinclair broke the record of most goals scored in Olympic women's soccer and was awarded the Golden Boot after scoring two goals against South Africa, one against Great Britain, and a hat-trick against the United States in the semifinal.
[7][8] Her performance earned her the honour of Canada's flag bearer in the closing ceremony as well as the Queen Elizabeth II Diamond Jubilee Medal.