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Lake, Thomas (April 11, 2011). "BAD NIGHTS IN THE NFL". Sports Illustrated Vault. Archived from the original on February 7, 2021. Retrieved January 8, 2021.
Klis, Mike (December 19, 2007). "Marshall caught up in success". The Denver Post. Archived from the original on April 26, 2019. Retrieved September 23, 2022.
Kuharsky, Paul (December 11, 2008). "Final fan voting for Pro Bowl". ESPN.com. Archived from the original on January 18, 2022. Retrieved September 21, 2022.
"A catch for the Hall". Pro Football Hall of Fame Official Site. December 21, 2019. Archived from the original on September 23, 2022. Retrieved September 21, 2022.
Lake, Thomas (April 11, 2011). "BAD NIGHTS IN THE NFL". Sports Illustrated Vault. Archived from the original on February 7, 2021. Retrieved January 8, 2021.
Jones, Lindsay H. (June 28, 2008). "Violent tendency, no penalty". The Denver Post. Archived from the original on February 25, 2021. Retrieved January 8, 2021.
Jones, Lindsay H.; Klis, Mike (March 2, 2009). "Marshall charges dropped". The Denver Post. Archived from the original on October 15, 2012. Retrieved October 3, 2018.