The NFL left Week 1 of play with no less than nine concussions to show for it, according to Forbes.

The 2015 season has begun, and with it the forever-growing list of NFL head injury victims. Carolina Panthers linebacker Luke Kuechly made a tackle with his head and collapsed. Miami Dolphins tight end Dion Sims attempted a diving catch and was knocked unconscious. Cleveland Browns quarterback Josh McCown was hit midair in the head and then fumbled the ball. St. Louis Rams cornerback Trumaine Johnson began experiencing symptoms and, to his credit, took himself out of the game. And that was all before half-time.

The number of first-week concussions in the NFL has risen over the past few years, but that fact could be attributed to greater awareness and reporting among the players and coaches, rather than an actual increase. And while more teams following correct protocols is a good thing, nine concussions in one week is cringe-worthy. Let’s hope it’s not a trend for the rest of the season and that the NFL will find better ways to play it safer soon.

*Scientists have no conclusive evidence as to whether or how the reduction of g-forces during impacts reduces the number or degree of concussions and head injuries. GelDefender products provide supplemental padding as well as cooling and comfort benefits when used with helmets and caps. Participants in activities in which head impacts can occur should always use tested and approved helmets for protection. However, no helmet or supplemental padding can protect the user from all serious head or neck injuries that can result from impacts.