user: Question: Tell me the sum of pick number for Kenny Arena
Columns: ['Pick #', 'MLS team', 'Player', 'Position', 'Affiliation']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [31.0, 'D.C. United', 'Hayden Woodworth', 'M', 'Messiah College']
SQL:

assistant: SELECT SUM("Pick #") FROM "Table" WHERE "Player" = 'Kenny Arena';