The Lions acquired outside linebacker Eli Harold from the 49ers on Thursday in exchange for a conditional seventh-round pick in 2020, the team announced.
A third-round pick out of Virginia in 2015, Harold tallied two sacks and 34 tackles last season, starting 10 games for the 49ers. He will look to boost a Detroit pass rush that has yet to register a sack in its first two preseason contests.
"Our entire organization would like to thank Eli for his hard work and contributions to our team and the Bay Area community over the last three years," 49ers general manager John Lynch said in a statement.