Football pro Damar Hamlin's health has improved slightly after suffering cardiac arrest during an NFL game.
This was announced by his club Buffalo Bills on Wednesday.
"Damar remains in critical condition in intensive care with signs of improvement seen yesterday and overnight," the club said on Twitter.
Hamlin is expected to remain in intensive care and be continuously "monitored and treated" by the health team.
Earlier, Hamlin's marketing rep, Jordon Rooney, told the Associated Press by phone that the situation was "moving in a positive direction."
"We all remain optimistic," added Rooney.
At the request of the family, he could not say more.
Hamlin is fighting for his life after suffering cardiac arrest in an NFL game last Monday.
On Tuesday (local time), his Buffalo Bills team reported a critical condition.
Hamlin is currently in the intensive care unit of a Cincinnati hospital.
According to Hamlin's uncle Dorrian Glenn, Hamlin's condition has improved since Monday, but there are concerns about possible damage to the lungs.
"I know he's fighting.
We will continue to pray.
He is in good hands with the medical staff, the doctors have done a great job," Glenn told ESPN.
Hamlin collapsed after a usual defensive action during the Buffalo Bills' game at the Cincinnati Bengals on Monday (local time).
The game was stopped when the Bengals were 7-3.