The 17-year-old sustained the injury when he landed awkwardly after challenging for a header in first-half stoppage time, the Merseyside club said.
“He will be going to hospital. I don’t want to speculate too much but he’s in a lot of pain and hopefully it’s not as bad as it looks, but we fear the worst a little bit at the moment.”
Rhian Brewster's injury will be assessed in hospital following tonight's #LFCU23s game.
— Liverpool FC (@LFC) January 12, 2018
Brewster, who won the Golden Boot in England’s Under-17 World Cup success in October, has yet to make his senior debut for the Reds.