Table: richard_dunne_match_stats
Columns: date
venue
result
competition
tally

Question: What is the fewest tally for the game played at Vasil Levski National Stadium, Sofia, Bulgaria?
SQL: SELECT MIN("tally") FROM richard_dunne_match_stats WHERE "venue" = 'vasil levski national stadium, sofia, bulgaria'

Question: For what competition was the game played on 28 March 2009?
SQL: SELECT "competition" FROM richard_dunne_match_stats WHERE "date" = '28 march 2009'