Over the weekend, the Ravens' first-round pick, his girlfriend and teammate Alex Lewis went to the Baltimore Animal Rescue and Care Shelter with just one request.
"We are looking for dog that's been here a long time and maybe not so adoptable," Stanley said, according to the BARCS Facebook page.
Stanley selected Winter, a 6-year-old female who'd been found last month locked inside a room of an empty home with no food, water or fresh air. She was dehydrated and had a sagging belly, which indicates she has given birth to lots of puppies.
"Female dogs with such characteristics are often passed by in our shelter -- but not by Ronnie!" the shelter wrote on its social media page.
There's a picture on the shelter's Facebook page of Winter giving a kiss to Stanley, the No. 6 overall pick in this year's draft.
"We are so proud to have amazing guys like Ronnie to be role models to the kids in our city," the shelter posted on Facebook. "Not only does his single act of kindness make adoption cool, but it makes giving love to an imperfectly perfect dog a 'manly' thing to do."