COSTA MESA, Calif. -- Los Angeles Chargers defensive end Joey Bosa suffered a left foot injury during the 11-on-11 team drills in practice on Tuesday.
Afterward, Bosa hobbled off the field on his own and spent the rest of practice receiving treatment from the team's training staff.
Bosa is "fine," and the injury is "nothing serious," a source with knowledge told ESPN's Adam Schefter.
The No. 3 overall selection of the 2016 draft, Bosa led the Chargers in sacks last season with 12.5, and he is one-half of the Chargers' talented pass-rush tandem that includes Melvin Ingram, who finished with 10.5 sacks last year.
Bosa played a full, 16-game season for the first time in his NFL career in 2017, earning a trip to the Pro Bowl. The Ohio State product missed the first four games of his rookie season with a hamstring issue after sitting out of training camp because of a contract dispute.
The Chargers already lost two of their front-line players for the season to injury, with tight end Hunter Henry suffering a right ACL knee injury in May and cornerback Jason Verrett suffering an Achilles tear during a conditioning test before the start of training camp.