Detroit Lions defensive tackle Haloti Ngata opted to undergo neurological testing earlier this offseason before deciding to return for the 2017 season.
Per Nate Atkins of MLive.com, Ngata had his brain scanned as part of a neurological program at Core Institute to make sure his brain was still healthy:
It was just to make sure with all the stuff that's going on with the brain stuff throughout the league," Ngata said. "You hear that stuff, and for me especially, I don't want to have problems when I'm older. I want to be able to raise my kids and be able to play with them when they're older and beat them in wrestling matches and stuff when they're teenagers.