Bristol City skipper Louis Carey will be out for at least two weeks with the shin and ankle injury he suffered at Leeds.
The defender left Elland Road on crutches following a crunching challenge by United's Jonny Howson.
"Louis has extensive bone bruising and a calf bleed. He is going to be sidelined for at least a fortnight," physio Nick Dawes told the club's official website. "There is no fracture, which is the good news, but there is lots of swelling and bruising."
City manager Keith Millen added: "It is obviously a blow to be losing Louis for a few weeks. He has done really well at right-back in recent weeks, helping us build an unbeaten run.
"We will assess the options available to us ahead of Saturday's game with Leicester."
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