user: Question: How many people were in attendance when the Washington Nationals had a score of 7-3 and a loss of worrell (0-1)?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['April 4', '@ Philadelphia Phillies', '4-8', 'Hernández (0-1)', 44080.0, '0-1']
SQL:

assistant: SELECT "Attendance" FROM "Table" WHERE "Score" = '7-3' AND "Loss" = 'worrell (0-1)';