Harlequins fly-half Demetri Catrakilis will not need surgery despite suffering a fractured bone in his throat during his side's 28-17 Premiership victory over Gloucester.
Catrakilis was making just his second appearance for Quins and opened the scoring with a penalty at Twickenham Stoop before taking an opposition shoulder to his neck.
Director of rugby John Kingston confirmed after the match the 28 year-old had been taken to hospital having struggled to breathe on the pitch.
Quins announced Catrakilis remains under observation but will not need an operation.
"Harlequins fly-half Demetri Catrakilis remains in hospital after sustaining a small fracture to a bone in his throat during the match against Gloucester on Saturday," a club statement read. "The fracture does not require surgery and Harlequins will provide a further update when available."
There is no timeframe on Catrakilis's potential return to action.