The tragic death of a young sledge-hockey player who was found in the cold outside his Toronto home this weekend has stunned the people who played alongside him on the ice.

Mark Stroz, 29, was a longtime member of the Markham Islanders, a team he captained.

Mark Stroz, wearing the 'C' on his jersey, is seen with fellow sledge-hockey players in this undated photo. (Submitted)

On Sunday morning, Stroz was found face down outside his Allanhurst Drive home. Paramedics rushed him to hospital, where he was later pronounced dead.

His unexpected passing left the sledge hockey club asking the media for privacy, as the people who knew him deal with their loss.

"We would like to thank everyone for their kind words of condolence as we remember a young man who was taken away from us much too soon," Shelley Nicholas of the Markham Islanders Sledge Hockey Club told CBC News in an email.

Tyler Markham told CBC News that when on the ice, his friend was "either a tough opponent or a wonderful teammate, depending on which sweater you were wearing."

Another friend posted a message on Reddit, describing his grief in learning that Stroz was gone.

Toronto police are looking to speak with the cab driver who is believed to have dropped Mark Stroz off on Allanhurst Drive in the early hours of Sunday morning. (CBC)

"I cannot put into words what he meant to me, I had known him over half my life. He was more than a friend, he was a brother, teammate, confidante and partner in crime," the post said.

An autopsy on Stroz was taking place on Monday afternoon.

Toronto police have said they are trying to locate a cab driver who is believed to have dropped Stroz off on Allanhurst Drive in the early hours of Sunday morning.