Aston Villa midfielder Jack Grealish will be out for at least three months after damaging one of his kidneys.
The England Under-21 international suffered the injury in the first half of Saturday’s pre-season friendly against Watford.
Villa manager Steve Bruce told BBC WM: “It’s very painful and he’s still in hospital, which tells you something about the extent of the injury.
“We wish him a speedy recovery because the kid’s still in a lot of pain.”
Meanwhile, Ivory Coast international Jonathan Kodjia is expected to be out of action for at least one more month as he continues his recovery from the broken ankle he suffered at the end of last season.
With Grealish set for a prolonged absence, Bruce said that his ability to replace the 21-year-old could be hampered by Financial Fair Play regulations.