What is the current capacity of the stadium used by a team coached by Mickey Arthur?
National Stadium, Karachi:  The stadium is able to hold 34,228 spectators, Its widely criticised that the city of this size with a population of over 15 million having such a small capacity stadium. Karachi Kings: The team is currently captained by Kumar Sangakkara and coached by Mickey Arthur a former South African cricketer.
34,228