Updated

Adrian Peterson has rejoined the Minnesota Vikings after missing practice to attend the funeral for his 2-year-old son.

Peterson says he went to Sioux Falls, S.D., on Wednesday for the private service. The boy died last week in an alleged case of child abuse. Peterson says he didn't know the child was his until about two months ago and had been working with the boy's mother to support the family financially and meet the boy, whose name was Tyrese Robert Ruffin.

The first time Peterson saw the child was when he was in the hospital last Thursday. The boy died the next day.

Peterson says attending the funeral was extremely difficult. He plans to play on Monday night against the Giants.