Marshon Brooks won't play as expected Tuesday evening in the Nike Pro City Tournament at Baruch College, 55 Lexington Avenue (at 24th Street). A Brooks rep cited a change of plans. His team, Dyckman/NYAC, will play Gold's Gym at 6:30 p.m. Admission is free. Brooks is also sponsoring a Father-Son. Mother-Daughter Basketball camp at Seneca Lake, NY, later this summer.