Chargers WR Alexander tears ACL

The San Diego Chargers have lost another player to a season-ending knee injury, with wide receiver Danario Alexander sustaining a torn right ACL during Tuesday's training camp practice session.

Alexander is coming off a strong 2012 campaign in which he established career bests of 37 catches, 658 receiving yards and seven touchdowns in 10 games after signing with the Chargers in midseason. The fourth-year pro had been projected as one of the team's starting wideouts.

Tuesday's ACL tear is Alexander's latest setback in a career that's been plagued by injuries. Knee surgery following his senior season at Missouri caused him to not be selected in the 2010 draft, and he played in just 18 games with St. Louis over his first two years in the NFL due to recurring leg problems.

The Chargers also lost outside linebacker Melvin Ingram, the club's first- round selection in the 2012 draft, to a torn left ACL during OTA's in May. Reserve inside linebacker Jonas Mouton suffered the same injury to his right knee on the first day of training camp and was subsequently placed on injured reserve.