CREATE TABLE table_28286776_52 (cap_s_ VARCHAR2, club_s_ VARCHAR2)

How many caps figures for the Doncaster Rovers?
SELECT COUNT(cap_s_) FROM table_28286776_52 WHERE club_s_ = "Doncaster Rovers"
SELECT COUNT("cap_s_") FROM "table_28286776_52" WHERE "Doncaster Rovers" = "club_s_"