Adrian Peterson has had a rough week, and now it's been revealed that he has a second secret child, totaling the number of children he's had at four.

According to TMZ, the mother of his three-month-old daughter is a waitress he met at the popular Minnesota nightclub called Seven. The baby's birth certificate lists Peterson as her father, and she also shares a name with the Minnesota Vikings running back.

The mother of Peterson's fourth child posted a comment on Facebook when his 2-year-old son passed away. "Today has been a long day finding out my [daughter's] brother passed away and knowing that she never even got to meet him." The mother has also posted photos of her daughter wearing Vikings clothes.

It is unknown how involved Peterson is in his 3-month-old daughter's life, if at all, but the Daily Mail reports that he does think about his kids. When asked why he played in Sunday's fall to the Panthers, Peterson said, “I was set on it. I just look at things and I don't ask people to understand my mindset and how I think. Anything bad, I try to take good from it. That's the way I approach life in all situations. I never thought about not playing. It was all about just going out there and praying that I have the strength to get through and help my team. That was my focus.”

Peterson has three other children with other women – a six-year-old daughter, a 2-year-old son and his son Ty who passed away earlier this week.

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