He played college football at Penn State, and signed as an undrafted free agent with Indianapolis Colts the in 2017.
Selected to play in the 2013 U.S. Army All-American game, where he roomed with future Nittany Lion teammate Brendan Mahon.
Named Most Valuable Defensive Player at the annual Nittany Lion Football Banquet.
[11] On October 12, 2017, Sickels was signed to the Los Angeles Rams' practice squad.
[14] Without Sickels, the Rams reached Super Bowl LIII where they lost 13–3 to the New England Patriots.