Zettel also lettered in baseball, basketball and track & field at Ogemaw Heights. As a senior in track, he set the Michigan high school state record in the shot put with a toss of 61 feet 8 inches (18.80 meters), earning his second straight state championship and breaking both the school record (60'9") and the Division II state record (58'8"). That same year, he finished second in the discus with a heave of 175 feet 4 inches (53.44 meters).[1] He also participated in sprints, running the 100-meter dash in 11.55 seconds and helping Ogemaw's 400m sprint relay post a season-low 45.95 in 2010.[2]
Zettel was rated as a four-star recruit and was listed as the nation's No. 6 prep defensive end by Rivals.com.
College career
Zettel played inside and outside during a 2014 first-team All-Big Ten Conference season at Penn State and recorded 17 tackles for loss, eight sacks, and three interceptions. He was moved inside in 2015 and his production dipped a bit with 47 tackles, 11 for loss, four sacks and six pass breakups.
On September 5, 2018, Zettel was waived by the Lions.[6]
Cleveland Browns
On September 6, 2018, Zettel was claimed off waivers by the Cleveland Browns.[7] He was released during final roster cuts on August 31, 2019.[8]
Cincinnati Bengals
On October 17, 2019, Zettel was signed by the Cincinnati Bengals.[9] He was waived on October 21,[10] but re-signed on October 23.[11] He was waived on December 17, 2019.[12]
On March 25, 2020, Zettel signed with the Minnesota Vikings.[14] He was released on September 2, 2020.[15]
New Orleans Saints
On September 19, 2020, Zettel was signed to the practice squad of the New Orleans Saints practice squad.[16] He was elevated to the active roster on December 5 for the team's week 13 game against the Atlanta Falcons, and reverted to the practice squad after the game.[17] He was released on January 11, 2021,[18] but re-signed with the practice squad on January 13.[19] Zettel was released again on January 16.[20]
San Francisco 49ers (second stint)
On July 27, 2021, Zettel signed with the 49ers.[21]