Ravens WR Jacoby Jones sprained his knee in the second quarter; he didn't return.
Jones indicated he'll undergo a magnetic resonance imaging exam Friday.
"I don't know," Jones said when asked how long he thinks he'll be sidelined. "I got to find out."
On a punt return, Ravens rookie safety Brynden Trawick with his head down in his first NFL game, barreled into Jones as he signaled for a fair catch. Both players were shaken up on the play and left the field slowly.
The Marlon Brown buzz continues. With Jones out, the undrafted rookie turned six targets into 4-65-1. Jones was targeted four times before the injury, so in total the Ravens' WR2 was targeted on 10 of Joe Flacco's 62 pass attempts. Brown will be a hot waiver pickup pending the results of Jones's MRI.