Career
His nickname at the San Jose SaberCats according to some fans is Hunger Games, as he is seen reading the books during practice. He was signed as an undrafted free agent by the Seattle Seahawks in 2004. He played college football for the Colorado Buffaloes.
Seattle Seahawks
Nyenhuis went undrafted in the 2004 NFL Draft and was signed by the Seattle Seahawks on April 30, 2004.
He was released as a late training camp cut on August 31. Jacksonville Jaguars
On September 7, 2004, the Jacksonville Jaguars signed Nyenhuis to their practice squad.
Indianapolis Colts
He re-signed on January 24, 2006. He was released on August 18, 2006.
Saskatchewan Roughriders
Nyenhuis signed with the Saskatchewan Roughriders on April 15, 2009.
He was released on September 16. Philadelphia Soul
In 2007, Nyenhuis signed with the Philadelphia Soul of the Arena Football League. Nyenhuis would play two years with the Soul, posting 9.5 sacks in 2008 to lead the Soul.
Tulsa Talons
In 2010, Nyenhuis signed with the Tulsa Talons.
San Jose SaberCats
Since 2011, Nyenhuis has played for the San Jose SaberCats. He has yet to replecate his 2010 season.