Despite Coutinho's departure, the Merseyside giants managed to beat Premier League leaders Manchester City 4-3 last weekend, but Liverpool's defence looked shaky as they conceded two late goals at Anfield.
"It's a very hard job to be a goalkeeper or a centre-half at Liverpool because no one forgives you [after] one mistake". Jordan Henderson (thigh) and Alberto Moreno (ankle) are back in training but may not be risked.
After picking up just five points out of an available 39, Paul Clements tenure at the Liberty Stadium came to an end in December.
Manchester City resumed normal service in the Premier League, putting their defeat against Liverpool behind them with a 3-1 victory against Newcastle as Alexis Sanchez closed in on a move to Manchester United.
Swansea City have scored the fewest home goals in the Premier League this season, with six.More news: North Korea to send 22 athletes to Pyeongchang Winter Olympics
Jurgen Klopp has made it clear that Loris Karius is now his first-choice goalkeeper, despite another error last week, as the Reds seek their first clean sheet since a 5-0 win over Swansea on Boxing Day.
"I'm not even sure if we'll have a look at our game against Swansea because it will be different". A clean sheet would go some way in boosting the confidence of the beleaguered Swans, and the fans will be hoping that Polish stopper Lukasz Fabianski can step up and shut out one of the most risky attacks in the league.
"This Liverpool team is far better than the team that won the Champions League back in 2005 and while Klopp and his players will need a few slices of luck to reach the final in Kiev next May, they should believe it is possible", he added.
Here is how we think the Reds will line up at Swansea. How can they deliver always at a good level?
"I accept it. As long as you don't do the same in the next 20 similar situations so that people start thinking: 'What's that about?' You can not play football without mistakes".
And Carvalhal says he has seen enough progress to provide optimism that Swansea can escape relegation.