Crystal Palace striker Stern John has not broken his arm as first feared.
The 32-year-old dislocated his elbow after falling awkwardly just 37 minutes into his Eagles debut against Plymouth Argyle on Saturday and had to be stretchered from the field.
There were concerns he had broken his arm but scans have since given him the all clear, though he has damaged the area around the elbow.
"The news is not as bad as we first thought," said Warnock.
"He had a scan this morning and although it's still swollen there's no break, just damage around the elbow.
"We will know more in the next 48 hours in terms of how long he will be out for."
Jose Fonte missed Saturday's game with a tight hamstring but could be in contention for a place against Torquay United in the League Cup tomorrow if he comes through a fitness test in the morning.
There were concerns he had broken his arm but scans have since given him the all clear, though he has damaged the area around the elbow.
"The news is not as bad as we first thought," said Warnock.
"He had a scan this morning and although it's still swollen there's no break, just damage around the elbow.
"We will know more in the next 48 hours in terms of how long he will be out for."
Jose Fonte missed Saturday's game with a tight hamstring but could be in contention for a place against Torquay United in the League Cup tomorrow if he comes through a fitness test in the morning.