user: Question: What is the sum of rounds where Freddie Mitchell was picked?
Columns: ['Round', 'Pick', 'Player', 'Position', 'School']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 25.0, 'Freddie Mitchell', 'Wide receiver', 'UCLA']
SQL:

assistant: SELECT SUM("Round") FROM "Table" WHERE "Player" = 'Freddie Mitchell';