Derby boss Nigel Clough is "delighted" that defender Miles Addison has successfully undergone surgery on a long-term foot injury.
The England Under-21 international's season has been blighted by the problem, restricting him to just six appearances since September.
Addison was operated on in San Francisco on Monday and Rams boss Clough has received positive reports from America.
"We are told the operation has been successful," Clough told the club's official website.
"Miles will stay out there for another week to allow the surgeons to monitor
the early part of his recovery and then he will be returning home.
"We are delighted the procedure has gone well but neither Miles or ourselves are in any doubt there is a long road ahead before we see him back in a Derby County shirt.
Clough insisted that Addison's return to action would not be rushed, to allow the promising youngster every chance of making a full recovery.
"There is no specific time-frame being put on his return," he added.
"It is important everything is done properly and methodically. Miles is an important asset for this club and has a long career ahead of him.
"It would be foolish to jeopardise his long-term future by being impatient."