The team provided the update Thursday, when the Bills closed a three-day voluntary minicamp. The Bills didn't say when the injury occurred or which knee Jones hurt.
The injury presents a slight setback for a team overhauling its group of receivers. Jones was a second-round pick out of East Carolina and being counted upon to compete for the No. 2 receiver job opposite starter Sammy Watkins.
Watkins also isn't practicing because he's still recovering from surgery in January to repair a broken left foot.