Leicester have found themselves on the wrong side of history after their dismal 3-0 home defeat by Newcastle moved them even closer to relegation.
Jacob Murphy made the early breakthrough after tapping in a cross at the far post and he soon doubled his tally, touching home when Fabian Schar's audacious effort from the halfway line cannoned back off the crossbar.
Harvey Barnes, on the books at the King Power between 2016 and 2023, then added a ruthless third for the Champions League-chasing visitors.
Ruud van Nistelrooy's side remain 19th in the Premier League and are 15 points adrift of safety after losing 22 of their 31 top-flight matches to date.