He played college football at Northwestern, and was signed by the Green Bay Packers as an undrafted free agent in 2018.
Lancaster did not surrender a sacks over the three years he played for the Bengals' varsity football team and was named first-team All-State by the Chicago Tribune.
[7] Lancaster was signed to the Packers' active roster on October 6, 2018, and made his NFL debut the following day in a 31–23 loss to the Detroit Lions, appearing on special teams.
[8][9] Lancaster made his first career start on November 25, 2018, recording one tackle in a 24–17 loss to the Minnesota Vikings.
[10] In week 8 of the 2019 season against the Kansas City Chiefs, Lancaster forced a fumble on running back LeSean McCoy and recovered the ball in the 31–24 win.