The Ravens have just four wide receivers active: Torrey Smith (Maryland), Jacoby Jones, Marlon Brown and Tandon Doss.
This marks the third game in a row that Trawick has been out since spraining his ankle.
The Lions scratched cornerbacks Chris Houston (toe) and Darius Slay (knee surgery), quarterback Kellen Moore, running back Mikel Leshoure, offensive guards Rodney Austin and Leroy Harris and offensive tackle Jason Fox.
Ravens tight end Dallas Clark is active tonight, one week after being a healthy scratch. For the Lions, running back Reggie Bush (calf) and defensive end Ezekial Ansah (shoulder) are both active.