user: Question: What is the largest overall rank for a center drafted before round 10?
Columns: ['Round', 'Overall', 'Player', 'Position', 'School/Club Team']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 16.0, 'Steve Holden', 'Wide Receiver', 'Arizona State']
SQL:

assistant: SELECT MAX("Overall") FROM "Table" WHERE "Position" = 'center' AND "Round" < 10.0;