in july 2000, the newly appointed jamaica technical director of football, clovis de oliveria, decided to axe the five based british-based players, including sinclair, from the upcoming 2002 fifa world cup qualifiers for "disciplinary reasons". however, sinclair was later re-instated into the side and appeared in four qualifying matches in june and september 2001, but jamaica failed to qualify for the world cup only winning two of the ten matches. it was two years before he made another appearance for the side and in august 2003 sinclair stated that his appearance in the summer friendly against nigeria would be "more than likely" his last appearance for jamaica. he wanted to give the younger players a chance of breaking into the team and wished to focus on his club career with leicester city, stating that the transatlantic travel could affect his form. in september 2003, he reversed his decision and was included in the squad for the friendly against australia played at the madejski stadium in reading, berkshire. the friendly against brazil at the walkers stadium, leicester, in october 2003 proved to be his final appearance for jamaica, with sinclair earning a total of twenty-eight caps.