Chelsea are on course to finish in the top four, and qualify for the Champions League, as they avenged their FA Cup final defeat by Leicester City to beat them 2-1 at Stamford Bridge on Tuesday.
Around 8,000 fans were at Stamford Bridge to watch a Thomas Tuchel Blues side for the first time, and were treated to a dominating performance, with Antonio Rudiger bundling in their opener before Jorginho rolled home a penalty.
Timo Werner twice had goals ruled out before the break while Leicester, who looked flat after Saturday's celebrations, offered little threat until Kelechi Iheanacho gave the visitors a lifeline with a cool finish in the 74th minute.
It was a nervy climax and Ayoze Perez wasted a glorious late chance to equalise but Chelsea clung on for a priceless win that moved them into third place on 67 points with one game remaining, meaning a win at Aston Villa on Sunday will guarantee them Champions League football next season.
For Leicester there is now the looming possibility that they will let a Champions League berth slip through their fingers for the second season in succession.
They could have ensured a top-four finish had they won at Stamford Bridge but will now drop to fifth, on goal difference, if Liverpool win at Burnley on Wednesday.