What is the earliest round drafted for a University of Southern California player?
CREATE TABLE table_name_91 (round INTEGER, school VARCHAR)
SELECT MIN(round) FROM table_name_91 WHERE school = "university of southern california"
### Context: CREATE TABLE table_name_91 (round INTEGER, school VARCHAR) ### Question: What is the earliest round drafted for a University of Southern California player? ### Answer: SELECT MIN(round) FROM table_name_91 WHERE school = "university of southern california"