Sierra Leone have competed in the Games since 1966, and Manchester will be their seventh outing. They are still yet to win a medal.
Sprinter Horace Dove-Edwin finished second in the 100m in 1994 but was disqualified because tests showed he had used steroids.
Their team of 22 returned home empty-handed from Malaysia in 1998.
Did you know?
Sierra Leone-born striker Paul Kpaka finished last season as the top African goal-scorer in Europe.
Kpaka, who plays for Belgian First Division side Germinal BA, hit 22 goals in all.