Miami Dolphins player Bayron Matos was airlifted to hospital on Wednesday after suffering an injury in the final few minutes of practice.
Matos was taken to a local medical facility in a helicopter but the Dolphins have said he is now in a stable condition.
The 24-year-old offensive tackle's injury has not been specified but it occurred on the first day of this year's training camp.
Born in the Dominican Republic, Matos joined the NFL's International Player Pathway Program and signed with the Dolphins last year.
He spent the season on Miami's practice squad but would have been desperately trying to impress head coach Mike McDaniel in training camp.
Matos is a 6-foot-7, 334-pound tackle, who previously played college basketball before switching to football.
Dolphins player Bayron Matos was airlifted to hospital after suffering an injury in practice
Born in the Dominican Republic, Matos was on the NFL's IPP and joined the Dolphins last year
Elsewhere, the Dolphins placed recently signed tight end Darren Waller on the physically unable to perform list along with veteran guard Liam Eichenberg.
Waller came out of retirement last month to play on a one-year deal with Miami. He had announced his retirement last June after playing one season for the New York Giants.
Speaking Tuesday morning with reporters for the first time since the Giants traded him to Miami on July 1, Waller admitted there were times during his career that he lost his passion for football, saying his joy for the game came and went as he battled substance abuse and mental health issues.
He added he feels it's possible to find that joy again in Miami.
'That joy has kind of been elusive,' Waller said, 'but I´ve always found moments where it came back. It´s something I have been able to experience, and I feel like that´s possible this time around.'
He also indicated that his training regimen to be ready for the 2025 season may look different from other players, which in part explains the Dolphins' decision to place him on the PUP list.
Eichenberg, a starting guard last season, will likely be a backup in 2025 after the Dolphins signed James Daniels in free agency and selected rookie Jonah Savaiinaea the NFL draft.
Also Tuesday, the Dolphins signed offensive lineman Daniel Brunskill and waived quarterback Brett Gabbert. Safety Ifeatu Melifonwu was placed on the non-football injury list.