Yes, Jessie Lemonier was related Corey Lemonier.
Jessie Lemonier was an American football outside linebacker who played for the Los Angeles Chargers, the Detroit Lions of the National Football League (NFL), and the Birmingham Stallions of the United States Football League (USFL).
Following his college football career with the Liberty Flames, he was signed by the Chargers as an undrafted free agent in 2020.
He was waived during final roster cuts on September 5, 2020, and signed to the team’s practice squad the next day.
Lemonier was promoted back to the active roster on November 7, waived on November 28, 2020, and re-signed to the practice squad four days later.
However, Corey Lemonier is a former American football outside linebacker
He was born on November 19, 1991 in Hialeah, Florida, United States to Henry Lemonier and Francoise Lemonier.
Lemonier attended Hialeah high school, where he played football. He recorded 50 tackles and 10 sacks as a junior and played in 2010 Under Armour All-America Game.
He played college football at Auburn University from 2010 to 2012.
Lemonier was then selected by the San Francisco 49ers in the third round, with the 88th overall pick, of the 2013 NFL Draft.