Greisen was originally drafted by the Arizona Cardinals in the seventh-round (239th overall) of the 1999 NFL Draft out of Northwest Missouri State. From 1999-01 he was inactive as the club's third quarterback before being released September 2, 2002. He signed to the Washington Redskins' practice squad on December 18, 2002 but was released after the season.
In 2003 he played for the Rhein Fire in NFL
Europe, the Green Bay Blizzard of af2 in 2004 and then the Dallas
Desperados of the AFL in 2005-06. Greisen joined the Georgia Force of
the AFL in 2007 and was released from the team in 2009 when the league
folded. He most recently played in the United Football League, signing
with the Florida Tuskers in August 2009, then with the Milwaukee Iron in
January 2010 before finishing the season with the Tuskers.
Cowboys sign QB
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