The wide receiver from Oregon State was the 20th selection in the draft.
Cooks won the Biletnikoff Award as the nation's top wide receiver. As a junior last season, he set Pacific-12 Conference records with 128 catches for 1,730 yards. The 5-foot-10, 184-pound Cooks also broke the school record with 16 touchdowns receiving.
The Saints did not release terms of the four-year deal Sunday.
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