The number nine player Erling Harland took his top-flight goal tally to 15 after nine matches, scoring the fourth of the afternoon at the Etihad Stadium.
Joao Cancelo scored the first goal after 20 minutes, before Phil Foden doubled the lead shortly after.
The Algerian had nothing but praise for the prolific forward.
"Haaland is part of our team. He is our striker he said…
"Like any other striker, if we can find him it's perfect because he is on fire.
"If not, there are a lot of players and everyone can make a difference. We have to keep going with the momentum.
Mahrez, who also scored in the midweek Champions League victory over FC
Copenhagen, feels that we could have scored more against the Saints.
However, the 31-year-old was pleased with the control that the team showed at the Etihad.
"It was a difficult game, we made it easy by scoring early and then we controlled the game.
CITY+ SIGN UP TO ACCESS EXCLUSIVE
"We had a lot of chances to score more but we didn't. We didn't concede much, it was a controlled game.
Content created and supplied by: ShakurLeon (via Opera News )
Opera News is a free to use platform and the views and opinions expressed herein are solely those of the author and do not represent, reflect or express the views of Opera News. Any/all written content and images displayed are provided by the blogger/author, appear herein as submitted by the blogger/author and are unedited by Opera News. Opera News does not consent to nor does it condone the posting of any content that violates the rights (including the copyrights) of any third party, nor content that may malign, inter alia, any religion, ethnic group, organization, gender, company, or individual. Opera News furthermore does not condone the use of our platform for the purposes encouraging/endorsing hate speech, violation of human rights and/or utterances of a defamatory nature. If the content contained herein violates any of your rights, including those of copyright, and/or violates any the above mentioned factors, you are requested to immediately notify us using via the following email address operanews-external(at)opera.com and/or report the article using the available reporting functionality built into our Platform See More