Former Hull and Salford forward Jansin Turgut is in intensive carer in an Ibiza hospital after falling from a third-floor car park.
Turgut, 23, who was recently released by Salford following a disciplinary hearing, is being treated for serious head injuries.
A statement from his former club said: "Salford Red Devils wish Jansin a full and speedy recovery and request that all supporters remain respectful of his family's privacy at this difficult time."
The statement added: "It has been confirmed that the 23-year-old has been taken to Nuestra Senora del Rosario Clinic in Ibiza.
"The club are currently in contact with Jansin's family, while further details are being established."
Turgut, a former England academy captain, signed for the Red Devils at the end of the 2018 season following a successful trial and appeared in the club's opening 10 matches of the 2019 Super League season.
However, he was suspended for allegedly breaching club protocol and sacked in early April.