CREATE TABLE table_name_51 (college_junior_club_team__league_ VARCHAR, round VARCHAR, player VARCHAR)

What league has a 10 for round with Paul Cain?
SELECT college_junior_club_team__league_ FROM table_name_51 WHERE round = 10 AND player = "paul cain"
SELECT "college_junior_club_team__league_" FROM "table_name_51" WHERE "paul cain" = "player" AND "round" = 10