Liverpool manager Kenny Dalglish has confirmed that midfielder Raul Meireles will be out for a few weeks with a collarbone injury.
The Portuguese international was replaced after 19 minutes of the 3-1 win at Exeter after a challenge with Grecians defender Danny Coles.
"Raul has hurt his collarbone. I don't know the technical term but he fell heavily," manager Kenny Dalglish said.
"We don't know how serious it is but it'll be a few weeks."
Dalglish was celebrating his 200th win in charge of Liverpool and saw goals from Luis Suarez, Maxi Rodriguez and Meireles' replacement Carroll guide the Reds safely through to the third round.
And the Liverpool boss added: "Martin Skrtel got through the game no problem, Danny Wilson got 90 minutes, Andy Carroll gets his first goal of the season and Maxi got a goal. We are quite happy we have gone through.
"The most pleasing thing was the attitude we had when we went on the pitch. If we didn't have that, we weren't going to win."