Career
He hails from Coimbatore. He made his international debut in May 2004 during a Four Nation Tournament in Gifu (Japan). Sinclair has played for the Chennai Veerans, Chennai Cheetahs has played club hockey in Germany, and as of September 2011 was playing center-forward for the Indian Overseas Bank hockey team
Sinclair was the best in Field Hockey at Stanes Higher Secondary School, Coimbatore.
He was elected "Head Boy" for 2001. He was also the captain of the "Panthers" and led them to victory in the Intra-School Sports Event in 2001.
He did his further studies in Purdue Student Government College of Arts and Science, Coimbatore. There was an accusation made against Adam Sinclair stating that he got into the Indian Hockey Team at the 2004 Athens Olympics by convincing an official to improperly use his clout.
This accusation, which was made by Dhanraj Pillay, has been denied by Sinclair.