Brendan Rodgers has suffered a triple injury blow as Liverpool prepare to take on Manchester United at Anfield on Sunday.
New signing Aly Cissokho, Joe Allen and Kolo Toure were all forced off with injuries during Tuesday's 4-2 extra-time victory over Notts County in the Capital One Cup.
And Rodgers believes all three could now miss Sunday's clash with the Red Devils.
"It was obviously disappointing with Cissokho getting injured early on," he told reporters. "He was distraught coming off as you can imagine.
"Joe Allen we need to check but he has maybe tweaked his hamstring and Kolo Toure has overstretched his groin which doesn't look so good, to be honest."
Goals from Daniel Sturridge and Jordan Henderson eventually booked Liverpool's place in the next round of the tournament after an enthralling clash with their League One opponents.