Adrian Peterson returned to Vikings practice Thursday after attending the funeral of a 2-year-old son one day earlier in Sioux Falls, S.D.
Peterson visited the boy in the hospital last week, and the child died the next day from injuries sustained in an assault that police say was committed by the boyfriend of the child's mother.
"It's an unfortunate situation," Peterson said. "I found out recently that he was my son, like two months ago. I was planning on seeing him. I had a talk with his mom, and we got some things together as far as financially helping her.
"Unfortunately this situation took place. It's devastating. A lot of people won't ever understand the situation that I'm in and see it the way I'm seeing the situation. It's tough, but I'm able to deal with that and got a good supporting cast around me that's been supporting me through this tough time."
Peterson said he hasn't paid attention to celebrity website reports that allege he's had other children with multiple women.
"People are going to speculate," he said. "People are going to say this and that. I can't let that bother me. I've been too focused on trying to mourn and be there for his mother and take in the loss of my son. I haven't been able to focus on anything else outside of that.
"My main focus has been on my son and their family down there in Sioux Falls. Just trying to wrap my head around things and trying to stay focused and play ball as well. So things have been tough, but I can handle a lot. I'm built for anything that comes my way. This right here will pass."
Peterson added: "When trials come in life you can do two things. You can let it beat you up and hold you down or you can find good from it and become stronger. That's the way I've always approached tragic situations or adversity in my life. I don't see myself going downhill. I see myself improving from this."