Table: player_transfers_0809
Columns: date
pos
player
from_club
transfer_fee

Question: What is Pos., when Player is "Nigel De Jong"?
SQL: SELECT "pos" FROM player_transfers_0809 WHERE "player" = 'nigel de jong'

Question: What is From Club, when Player is "Robinho"?
SQL: SELECT "from_club" FROM player_transfers_0809 WHERE "player" = 'robinho'

Question: What is Pos., when From Club is "CSKA Moscow"?
SQL: SELECT "pos" FROM player_transfers_0809 WHERE "from_club" = 'cska moscow'

Question: What is Pos., when From Club is "Chelsea", and when Date is "30 July 2008"?
SQL: SELECT "pos" FROM player_transfers_0809 WHERE "from_club" = 'chelsea' AND "date" = '30 july 2008'