( CNN ) Minnesota Vikings running back Adrian Peterson will be reinstated as an active player by the NFL on Friday , the league said . The NFL suspended the 30-year-old football star in November over allegations that last May he disciplined his son , who was 4 at the time , too harshly with a `` switch , '' or thin stick . In a letter , NFL Commissioner Roger Goodell told Peterson that his continued participation in the league was contingent on a number of requirements , including that he maintain `` an ongoing program of counseling and treatment as recommended by medical advisers , '' the NFL said Thursday . Also required of Peterson : Avoiding `` any further conduct that violates the ( NFL 's ) personal conduct policy or other NFL policies . '' `` Any further violation of the personal conduct policy by Peterson would result in additional discipline , which could include suspension without pay or banishment from the NFL , '' the league said in a statement . Peterson played in one game last season , a 35-6 win against St. Louis in September , before the league put him on an exempt list September 17 -- keeping him off the field with pay -- in light of his indictment that month in the case . Initially charged with felony child abuse , Peterson pleaded no contest to misdemeanor reckless assault in November in Texas . The NFL then suspended him without pay and he lost his appeal of that sanction the next month . In February , a Minnesota district court judge vacated the decision that upheld his suspension , making Peterson eligible for reinstatement . Bleacher Report : Latest details , comments , reaction . The Vikings issued a brief statement in which they said they `` look forward to Adrian rejoining the Vikings . '' ESPN reported that the team will hold voluntary offseason workouts beginning Monday . The next Vikings ' organized team activities begin in late May . It is unclear whether Peterson will attend . He has been unhappy with how the Vikings have handled the matter . Though Peterson dodged jail time with his no-contest plea , he received probation , community service and a $ 4,000 fine . He also will take parenting classes . `` I truly regret this incident , '' Peterson said after accepting the deal . `` I stand here and I take full responsibility for my actions . I love my son more than any one of you can even imagine . '' Peterson is considered one of the best running backs in the NFL . In 2011 he signed a seven-year contract worth more than $ 100 million with the Vikings , who were 7-9 last season and failed to make the playoffs . In eight seasons , including last year 's abbreviated year , he has rushed for 10,190 yards and averaged a strong 5.0 yards per carry . CNN 's Jill Martin and Eliott C. McLaughlin contributed to this report .
Adrian Peterson had been suspended after pleading guilty to misdemeanor reckless assault . NFL Commissioner Roger Goodell requires him to keep going to counseling , other treatment . Minnesota Vikings , last year 's , say they look forward to him rejoining the team .