Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_37 (pick__number INTEGER, position VARCHAR, player VARCHAR)
### Question:
The player is Tim Regan and the pick # is position of d, what's the sum?
### Answer:
SELECT SUM(pick__number) FROM table_name_37 WHERE position = "d" AND player = "tim regan"