Former Alabama LB Dont'a Hightower announces retirement from the NFL
Dont'a Hightower retires from NFL after decade with Patriots
Patriots' legendary LB officially announces retirement from NFL
NFL - 3x Super Bowl Champion LB Dont'a Hightower announces
Replacing Tom Brady May Be the Easy Part for the Patriots - The Ringer
What's the deal with Donta Hightower? Is he retired? Not signed? Haven't heard a peep about him since the end of the season. : r/Patriots
NFL players who have opted out of the 2020 season
Former Patriots LB Dont'a Hightower announces retirement, National Sports
Patriots LB David Harris retires after 11 years in NFL