Baltimore Ravens four-time Pro Bowl cornerback Marlon Humphrey (calf) and three-time Pro Bowl middle linebacker Roquan Smith (hamstring) are expected to miss a couple of weeks, NFL Network reported on Monday.
Two-time Pro Bowl defensive tackle Nnamdi Madubuike was ruled out for the remainder of the season by head coach John Harbaugh following a neck injury that forced him to the injured reserve list last week.
In addition to Humphrey and Smith, star quarterback Lamar Jackson (hamstring), cornerback Nate Wiggins (elbow) and left tackle Ronnie Stanley exited early for the Ravens (1-3) in Sunday's 37-20 road loss to the Kansas City Chiefs.
Smith, a three-time All-Pro, was diagnosed with a Grade 2 hamstring strain.
Humphrey, 29, was Baltimore's first-round pick (No. 16 overall) in the 2017