Peterson was suspended indefinitely by the NFL last November after pleading no contest to a misdemeanor assault charge for allegedly hitting his 4-year-old son with a switch. The suspension was overturned by a judge in February, but the league said it would appeal the ruling and Peterson remains on the Commissioner's Exempt List.
April 15 was the earliest date Peterson could be reinstated by the NFL under his suspension. Goodell said he expects to meet with the running back before a decision is made.
Hardy, who signed a one-year deal with the Cowboys last week, played just one game last season before being placed on the Commissioner's Exempt List after being found guilty of misdemeanor domestic violence.
After appealing his conviction, Hardy was set to stand trial in February, but the charges were dropped when the accuser couldn't be found by prosecutors. The accuser reportedly received a cash payout to drop the charges.
Hardy could still face discipline from the league. Last week, the NFL filed a lawsuit against the Mecklenburg County district attorney in an attempt to gain access to evidence from Hardy's first trial in North Carolina.
- Molly Geary