Swansea need to lift themselves after Wilfried Bony's departure.
Swansea started the season in flying colours after beating Manchester United at Old Trafford on the opening day of the 2014/15 campaign.
But recently they've stuttered a little and have lost their top goal scorer Wilfried Bony.
Bony who was the leading goal scorer, ahead of Robin van Persie, Wayne Rooney and Sergio Aguero in the year 2014 secured a permanent move to Manchester City from Swansea, few weeks ago.
There's a big void to fill in the absence of the 26-year-old striker and Carragher thinks it'll be difficult for Swansea as Bony was a key player in their team.
"I think it'll be difficult for Swansea. Bony's gone and it's important for them to get a result in the next few weeks psychologically, when you're on a bad run and your best player's left, it can affect people. A result would give everyone a huge lift," the Liverpool legend said.
"Think Newcastle last season; they had a very good first half of the season and then, after Yohan Cabaye left, they seemed to fall away. Swansea have to try and make sure that doesn't happen."
When asked if Bafetimbi Gomis can fill the void left by Bony, Carragher replied: "Gomis has to come to the fore and try to provide some goals. This is his chance. He's done well at Lyon but now he's got to show he can do it in the Premier League. He's on trial until the end of the season."