user: Question: What is the Current singles ranking for the player named Mantas Bugailiškis?
Columns: ['Player', 'Current singles ranking', 'Current doubles ranking', 'First year played', 'Ties played', 'Total W–L', 'Singles W–L', 'Doubles W–L']
Types: ['text', 'text', 'text', 'real', 'real', 'text', 'text', 'text']
Sample row: ['Ričardas Berankis', '68', '515', 2007.0, 13.0, '17–9', '14–5', '3–4']
SQL:

assistant: SELECT "Current singles ranking" FROM "Table" WHERE "Player" = 'Mantas Bugailiškis';