Spent the 2021 season with the Saskatchewan Roughriders, where he appeared in 13 games and recorded 54 tackles.
Played four seasons in the NFL (2017-2020) between the Buffalo Bills and the Miami Dolphins. He played in 53 regular season games and made 21 tackles over his second stint in the NFL.
Played three seasons with Edmonton from 2014-16 recording 114 defensive tackles, seven sacks, three interceptions, and four forced fumbles over 54 games.
Signed with the Dallas Cowboys in 2013.
2021: (Saskatchewan) Played in 13 games, recording 54 defensive tackles, three special teams tackles, fours sacks and one forced fumbles. In two playoff games, Lacey combined for 19 tackles with 12 coming in the Western Semi-Final against the Calgary Stampeders.
2017-2020: (Buffalo/Miami) Played 37 games with the Bills, 16 with the Dolphins in four NFL seasons, finishing with 21 tackles.
2016: (Edmonton) In 18 games, recorded 87 defensive tackles, 16 special teams tackles, one sack, three interceptions and one touchdown.
2015: (Edmonton) In 18 games, Lacey had 18 defensive tackles, 23 special teams tackles, six sacks and led the team in forced fumbles with four.
2014: (Edmonton) In 18 games, recorded 9 defensive tackles and 29 special teams tackles.