Jansin Turgut, a former Salford Red Devils star, is in a critical condition at Ibiza's Nuestra Senora del Rosario Clinic after the fall at around 3am Monday morning.
The circumstances behind the 23-year-old's fall are still being investigated.
Turgut, who also played for Hull FC, has already undergone an extensive 10-hour operation.
The Turkish international had headed to Ibiza earlier this month for a break following his release from the Red Devils, who play in rugby league's Super League.
“We just don't know how this will go”Carole Butler, mum
He had signed a short-term deal with Salford, but this contract was later terminated due to an "off-the-field" matter.
It later emerged he had been suspended for a reported breach of club protocol.
His mum, Carole Butler, told Hull Live the ex-England youth captain is expected to face more surgery.
He had a CT scan earlier on Tuesday, with his family anxiously waiting on results today.
Carole revealed the Hull-born star has suffered severe fractures to every bone in his face and has broken his hips, legs, knees, and arm and his hands.
Miraculously, he isn't thought to have suffered any brain damage.
His mum said: "I'm going to tell everyone how it is, I am not going to dress it down."
She went on: "He's on a life support machine but the good news is they don't think at this moment he has brain damage."
But she added: "I'm not sugar coating it because people should know the truth.
"We just don't know how this will go. He's more stable now than he was yesterday and that's as much as we know for now."
Carole flew to Ibiza yesterday morning, but his dad has been unable to travel because he is on kidney dialysis.
A fund set up to raise money for Turgut's treatment raised more than £8,000 in the space of 24 hours.