Chivas USA forward Atiba Harris will miss two to four weeks with a mild MCL sprain in his right knee.
He was injured during the team's weekend practice. Harris is rehabbing in Los Angeles and didn't travel to Guadalajara, Mexico, for the team's 10-day training camp.
Harris started 23 of 28 games for Chivas USA last season, his first with the club after being traded.
Chivas USA opens the MLS season on March 21 against Colorado.