CREATE TABLE table_name_88 (position VARCHAR, jersey_number_s_ VARCHAR, years VARCHAR)

what position did the player play who had a number of 15 who played in 1987?
SELECT position FROM table_name_88 WHERE jersey_number_s_ = "15" AND years = "1987"
SELECT "position" FROM "table_name_88" WHERE "15" = "jersey_number_s_" AND "1987" = "years"