The Reds were 3-1 winners against Manchester City at Anfield in the top of the table clash on Sunday.
Goals from Fabinho, Mohamed Salah and Sadio Mane helped Liverpool FC to secure three points against the defending champions.
Jurgen Klopp’s side moved nine points ahead of the Citizens thanks to their comfortable victory.
Liverpool FC are eight points ahead of Leicester City and Chelsea FC after both clubs won on Saturday.
The Merseyside outfit are looking to win their first-ever Premier League title after finishing in second place last term.
Three-time Premier League winner Mourinho doesn’t envisage Liverpool FC allowing their lead to slip at the top of the table.
“If you are behind [in the title race], you have to feel like you can reach them. If you are top of the league with a big advantage, you have to feel like it is not over,” Mourinho told Sky Sports.
“But I am not there, I’m here. And here, from my position, I think it’s done unless something dramatic happens in terms of an injury situation that breaks the team.
“But I think the team is a complete puzzle. I feel the way they play is adapted to the qualities of the players.
“City are capable of winning seven, eight, nine matches in a row, but I can’t see how Liverpool can lose this advantage of nine points to them.”
Liverpool FC will take on Crystal Palace at Selhurst Park in their next Premier League fixture before successive home games against Brighton and Everton.
The Reds will take on Leicester City at Anfield in their next big Premier League clash against a potential title rival on Boxing Day at the King Power Stadium.
Liverpool FC have finished in second place on four different occasions in 2002, 2009, 2014 and 2019.
Gerard Houllier, Rafael Benitez, Brendan Rodgers and Klopp have all led Liverpool FC to runners-up spots.
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