Leicester City boss Enzo Marsca says Monday's win at Birmingham may prove to be the promotion-chasing Foxes' most significant victory of the season.
The 3-2 triumph moved Leicester three points clear at the top of the Championship.
It also widened the gap to third-placed Leeds to 13-points after 22 games, as the top two chase automatic promotion to the Premier League.
"It's a huge win," Maresca told BBC Radio Leicester.
"For me it's probably one of the most important, or the most important win of the season."
Italian Maresca made his feelings known to his players after full-time, with goalscorer Kiernan Dewsbury-Hall saying everyone "understood it was a very big game" after second-placed Ipswich Town and Leeds were held to draws on Saturday.