CREATE TABLE table_16795394_3 (team__number1 VARCHAR2, team__number2 VARCHAR2)

If team two is San Lorenzo, how many were on team one?
SELECT COUNT(team__number1) FROM table_16795394_3 WHERE team__number2 = "San Lorenzo"
SELECT COUNT("team__number1") FROM "table_16795394_3" WHERE "San Lorenzo" = "team__number2"