Indianapolis Colts linebacker Darius Leonard (concussion) is ruled out for Week 4's game against the Oakland Raiders.
Leonard will miss Sunday's matchup after entering concussion protocol last week. With the Colts' defense banged up, expect the Raiders to attack the middle of the field with tight end Darren Waller.
In two games this season, Leonard has produced 18 total tackles and 1 sack.
Source: Mike Chappell