user: Question: If the player is Marcelo, what is the minimum R?
Columns: ['R', 'Player', 'Position', 'League', 'Champions League', 'Copa del Rey', 'Total']
Types: ['real', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Guti', 'AM', 9.0, 1.0, 0.0, 10.0]
SQL:

assistant: SELECT MIN("R") FROM "Table" WHERE "Player" = 'Marcelo';