SELECT count(*) FROM wrestler
How many wrestlers are there?
[Schema (values) (types)]: | wrestler |  wrestler : wrestler_id (text) , name (number) , reign (text) , days_held (text) , location (text) , event (text) | Elimination : elimination_id (text) , wrestler_id (number) , team (text) , eliminated_by (text) , elimination_move (text) , time (text);