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_91 (round INTEGER, position VARCHAR, player VARCHAR)
### Question:
What is the highest Round that has a Position of Tackle and the Player Fred Neilsen?
### Answer:
SELECT MAX(round) FROM table_name_91 WHERE position = "tackle" AND player = "fred neilsen"