user: Question: What is the visitor team of the game with Rudy Gay (18) as the leading scorer?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Leading scorer', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1 December 2007', 'Timberwolves', '80–109', 'Grizzlies', 'Rudy Gay (21)', '6–10']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Leading scorer" = 'Rudy Gay (18)';