However, the teams head into the clash at the Liberty Stadium in contrasting form, with Swansea having won three of their last five Premier League games and Leicester losing four consecutive league matches.
"This is a different Swansea City side to what we have seen before this season... We have improved a lot defensively and should give us confidence over the last games of the season," Fabianski told British media.
"I think we can all feel and sense that something positive is happening here. We have to keep building on that. Leicester is a big game," he added.
Swansea have the worst record in the league, conceding 54 goals in 24 games. However, the appointment of Clement as manager last month has helped to lift them out of the bottom three.
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"We have to keep working hard and improving because you can clearly see the results of the work we have been doing with the new boss," Fabianski added.
Leicester and Swansea, in 16th and 17th respectively, are just one point above the relegation zone after 24 league games.
(Reporting by Shravanth Vijayakumar in Bengaluru; Editing by Keith Weir)
