The Reds finished the Capital One Cup second-round win over Notts County at Anfield with 10 men, having been reduced to that during the first half of the additional 30 minutes when Toure was carried off on a stretcher with a groin problem.
They had already made all three of their substitutions, with two of them being injury-related - Cissokho, on his first Liverpool start, departing in the 10th minute due an ankle problem and Allen following suit in the 65th having sustained an apparent hamstring issue.
On the trio, Liverpool boss Brendan Rodgers said: "We will assess them. It was obviously disappointing with Cissokho getting injured so early on - he was distraught coming off as you can imagine.
"Joe Allen we just need to check - he has maybe tweaked his hamstring.
"And Kolo Toure has overstretched his groin, so we need to assess that, which doesn't look so good to be honest."
Rodgers did confirm centre-back Martin Skrtel, recently sidelined by a knee problem, would be available for Sunday's Premier League home clash with Manchester United.