Sunday's 5-0 thrashing of Newcastle at the King Power Stadium moved Leicester back to third in the Premier League, Jamie Vardy scoring twice as Steve Bruce's hapless visitors were comprehensively beaten.
Ricardo Pereira's opening goal was followed by a red card for Isaac Hayden, before Jamie Vardy's second-half brace, a strike from Wilfred Ndidi and Paul Dummett's own goal resulted in City's biggest ever Premier League win.
The Foxes are looking strong contenders to break into the top-six this season and were ruthless against the only team to defeat them at home since Brendan Rodgers took charge in February.
Leicester went ahead when Pereira played a one-two with Ayoze Perez - playing against his former club - and burst forward before side-footing the ball into the bottom corner.
While the midfielder protested referee Craig Pawson's decision, with Lascelles having to lead his team-mate down the tunnel, replays showed his contact with Praet's standing leg was high despite winning the ball.
Leicester broke down the left wing nine minutes after the restart and Harvey Barnes played Vardy in for a low, first-time shot that squirmed under Dubravka's body and in at the near post to leave Newcastle with a mountain to climb.
Leicester made it 2-0 after 54 minutes.
There was little the Newcastle goalkeeper could do for Leicester's third three minutes later, wrong-footed after Praet's attempted cross deflected off Dummett and trickled into the net. Vardy got his second of his game in the 64th minute, heading in from close range before Ndidi put the icing on the cake.
Bruce called it a "bad, bad performance" with Newcastle in 19th place on five points.