The protocol itself kicks into action when a player is either displaying or self-reporting signs of head injury. Once that happens, the team’s medical staff as well as the league’s unaffiliated neurotrauma consultants — three are assigned to each game — take further steps.

New England Patriots standout cornerback Christian Gonzalez will begin the week of the team's divisional round matchup in the concussion protocol, coach Mike Vrabel told reporters Monday.

Cornerback Christian Gonzalez exited late in Sunday’s 16-3 wild-card win over the Los Angeles Chargers.

Many NFL fans are looking for an injury update for Nico Collins after the Texans wide receiver suffered a concussion in the wild card game against the Pittsburgh Steelers on Monday, January 12.

It’s looking more and more like the Houston Texans will be without their best offensive player when they visit the New England Patriots on Sunday.

During the second half of the Texans-Steelers game, Collins tried catching a pass from Stroud over the middle of the field.