Seattle Seahawks wide receiver Jake Bobo sustained a "serious" knee injury during a joint practice with the Tennessee Titans on Friday, head coach Mike Macdonald announced.

Bobo was carted off the field during the session, with his right leg outstretched. Players from both teams reportedly took a knee as trainers attended to the receiver. Macdonald described the injury as "long-term" following an initial evaluation.

"Our heart goes out to Jake Bobo," Macdonald told reporters. "It seems like it's going to be a serious knee (injury). We're going to get it imaged, but early returns are (that) it looks like it's a long-term injury. That's unfortunate."

Quarterback Sam Darnold expressed concern for his teammate. "It hurts, man," Darnold said. "He's one of those guys that he works, he talks a lot of stuff and he's kind of like (Devon Witherspoon) in a way, offensively. He brings the juice every single day, and he just does his job. So it sucks to lose Bobo but I know he's going to attack it and be better whenever he comes back."

Bobo, 28, is entering his fourth season with the Seahawks. He joined the team as an undrafted rookie in 2023 and has appeared in 45 career games, recording 34 catches for 323 yards and three touchdowns. In addition to his contributions at receiver, Bobo is a key player on the Seahawks' special teams units.

Last season, the Jacksonville Jaguars offered Bobo a two-year, $5.5 million contract as a restricted free agent, but the Seahawks matched the offer to retain him. Macdonald praised Bobo's value to the team.

"He's a beast, man," Macdonald said. "Just a great football player, a great Seahawk. Hopefully we reflected that in our investment in him. But we love him, we'll be there beside him as he recovers and we pray it's a speedy recovery. But we love him."