That year, the Seattle Sounders of the North American Soccer League (NASL) drafted Crook and he bypassed college to turn professional.
Crook spent the 1984–1985 MISL season with the Strikers before moving to the San Jose Earthquakes for the 1985 Western Alliance Challenge Series.
During those years, he did continued to play an occasional outdoor season, first with the Seattle Storm of the WSA in 1988, [1] then the Portland Timbers of the American Professional Soccer League (APSL) in 1990.
[2] When the Stars folded following the 1991–1992 MISL season, Crook moved to the Portland Pride for the 1993 Continental Indoor Soccer League.
In February 2000, the St. Louis Steamers of Major Indoor Soccer League acquired the rights to Crook, but then traded it back to the Pythons in April.