user: Question: Who is the winner in the week listed as 26 June 2 weeks, when the runner-up is Arantxa Sánchez Vicario?
Columns: ['Week of', 'Tier', 'Winner', 'Runner-up', 'Semi finalists']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['12 June', 'Tier III', 'Zina Garrison-Jackson 6–3, 6–3', 'Lori McNeil', 'Elna Reinach Els Callens']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Week of" = '26 June 2 weeks' AND "Runner-up" = 'Arantxa Sánchez Vicario';