Tom Savage returned to the field before being diagnosed with a concussion. The NFL is looking into it.

Tom Savage returned to the field before being diagnosed with a concussion. The NFL is looking into it.  SB Nation Hit that left Texans' Tom Savage shaking will bring scrutiny to the NFL's concussion protocol  Washington Post Tom Savage injured after taking a huge hit  NBCSports.com Jimmy Garoppolo elevates 49ers to second straight win  ESPN (blog)Full coverage