user: ### NOW ANSWER:
Question: How many rounds did the match last with Sam Sotello as the opponent?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Loss', '8–5', "Jake O'Brien", 'Decision (split)', 'UFC 94', 3.0, 'Las Vegas, Nevada , United States']
SQL:

assistant: SELECT AVG("Round") FROM "Table" WHERE "Opponent" = 'Sam Sotello';