Trent Williams says he no longer trusts the Washington Redskins and felt they were vindictive in how they waited until the last minute to try to trade him.
He is also upset over how long it took the Redskins to take care of a cancerous growth on his scalp.
Williams, who ended his holdout Tuesday, spoke publicly for the first time since the end of last season.
"There's no trust there," he said. "There are some things that happened that are hard to look past."
Williams said he was diagnosed with a rare form of cancer called dermatofibrosarcoma protuberans. He said doctors told him the growth was removed only weeks before it would have reached his skull.
"It was cancer. I had a tumor removed from my skull -- attached to my skull -- it got pretty serious for a second," Williams said. "I was told some scary things from the doctors. It was definitely nothing to play with. It was one of those things that will change your outlook on life."
Williams said he first asked the Redskins' medical staff about the growth on his head six years ago, but he said nothing was done until this offseason.