Tennessee Titans outside linebacker Harold Landry III tore an ACL during practice on Wednesday, a source told ESPN's Adam Schefter.
Landry led the Titans with a career-high 12 sacks last season, making him the first Titans pass-rusher with double-digit sacks since Brian Orakpo had 10.5 in 2015.
Seven of Landry's 12 sacks came on third down, which was third-best among all pass-rushers. Landry also finished with 49 quarterback pressures, 22 quarterback hits, 21 quarterback hurries and 14 tackles for loss.