user: Question: Which Opponent has a Loss of Weaver (9-9)?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Time', 'Att.', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['July 1', '@ Twins', '8-3', 'Blair (0-3)', '2:41', 21031.0, '32-46']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Loss" = 'Weaver (9-9)';