Harlequins fly-half Demetri Catrakilis remains in hospital.
The fly-half sustained a small fracture to a bone in his throat during his sides 28-17 win against Gloucester on Saturday.
The South African summer signing from Montpellier was making his home debut for Quins but required oxygen after he was struck on the throat by a shoulder in the 13th minute and taken off on a stretcher.
Harlequins confirmed today that the fracture does not require surgery and will provide a further update when available.