Hamlin's team said that he is showing some improvement, despite being in critical condition.
A Bills player had a cardiac arrest on the field during a game in Cincinnati.
The Bills gave a brief update on his status.
The Buffalo community, the National Football League and the sports world have paid tribute to Hamlin.
Hamlin showed signs of improvement yesterday and overnight, according to the Bills.
His health care team is keeping an eye on him and he is expected to remain in intensive care.
Hamlin had a cardiac arrest during the game after tackling the Cincinnati receiver. Hamlin fell on his back after he got to his feet.
His family and loved ones were shocked by his injury.
Mr Glenn said that he had never cried so hard in his life. My nephew died on the field and they resuscitated him. It is heartbreaking.
Mr Glenn told CNN that Hamlin had to be resuscitated twice, once on the field and again in the hospital, but the player's friend and marketing agent Jordon Rooney later said the uncle missed the point.
Mr Rooney said thatamar had only been resuscitated once.
The University of Cincinnati Medical Center has not yet responded to a request for an update on Hamlin's health.
According to Mr Glenn, his nephew is showing encouraging signs of improvement, such as doctors decreasing the level of oxygen he needs. Hamlin is currently on a breathing machine.
Mr Glenn said that they wanted him to have a better chance of recovery. His body can heal a lot quicker if he's snoozing.
Hamlin's family is grateful for the many well-wishes they have received since his injury, including from players and fans, as well as the many flowers, candles, and signs that have been placed outside the Cincinnati hospital, according to an interview Mr Glenn gave to the sports network.
It means a lot to my family to see that, and I know it will mean a lot to Damar when he sees that.
The Buffalo Sabres wore shirts with Hamlin's jersey number as they arrived for their game against the Washington Caps.
The Falls were lit up in Hamlin's honor that night.
The Buffalo Bills changed their display picture to a blue background with the words "Pray for Demar" and the number three written on it. The other teams followed suit.
Hamlin played college football at the University of Pittsburgh, where he was drafted to the National Football League.
Pat Narduzzi wrote that Hamlin is far more than just a football player.
He is a loving son, brother and friend. amar is a hero to a lot of kids
Hamlin has been praised for his charity work, including an annual toy drive he has organised ahead of Christmas.
The one toy drive that was reshared after Hamlin's cardiac arrest has surpassed $6 million in donations.
Following Hamlin's injury, the game between the Bills and theBengals has been indefinitely postponed, with the league saying it has no decision on whether the game will be resumed at a later date.
The Bills are scheduled to play the Pats on Sunday. The team will be holding meetings and a walk-through ahead of Sunday's game, but will not be providing any further updates to the media.
Due to the death of Hamlin, the Pro Football Hall of Fame decided to delay the announcement of the Class of 2023 finalist until Wednesday.