user: Question: Who was the winner in the event with a runner-up of Alberto Mancini?
Columns: ['Week of', 'Tournament', 'Winner', 'Runner-up', 'Semi-finalists']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['6 July', 'Gstaad , Switzerland $300,000', 'Sergi Bruguera 6–1 6–4', 'Francisco Clavet', 'Fabrice Santoro Gabriel Markus']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Runner-up" = 'Alberto Mancini';