Airline passengers seated behind Atlanta Falcons wide receiver Mohamed Sanu Sr. gave him a note at the end of the flight to thank him for being a role model for their son.
Sanu shared a picture of the letter to Twitter.
"Hi! You don't know us but we wanted to thank you," the letter says. "Our son sat behind you on this flight and watched you."
"He saw you studying your plays, watched you make healthy choices with your snacks, food and drink. He watched how polite you were to everyone," the letter continues.
The family then states that their son is 10 years old and has just been placed on an elite hockey team. They were on their way to his training in Connecticut.
"You are an inspiration to children and for that you should be proud," the letter says. "Thank you and best of luck!"
The letter is signed: "The Family that sat behind you."
Upon sharing the letter, Sanu said, "This definitely put a smile on my face ... the little things."
The Atlanta Falcons, sharing Sanu's tweet, expressed pride over the incident: "A role model both on and off the field. Proud to have this guy on our team," the tweet reads.
Responses to the Atlanta Falcons tweet were overwhelmingly positive.
"So awesome to see this especially in the times we live in. There is hope in this world. And it starts with just one person. And goes on & on," a comment reads.
"While our guys can make a fans day, it's an important reminder that fans can make a players day as well," the Atlanta Falcons tweeted in response.
"Absolutely!! Proud to live in Atlanta where our ball players make a difference on and off the field," a user wrote.
Sanu, 27, is originally from Sayreville, New Jersey. He attended Rutgers University and was drafted by the Cincinnati Bengals for the 2012 season, according to the NFL. He played with the Cincinnati Bengals through the 2015 season and then moved to the Atlanta Falcons in 2016.
The heartwarming story of Sanu's flight occurred around the same time as an American Airlines flight crew member allegedly took a stroller violently away from a woman with a baby and hit her, "just missing the child," a passenger on the flight out of San Francisco said, according to Fox News.
American Airlines says that the crew member in question has been "removed from duty."