Building on their brilliant performance against Arsenal, Nottingham Forest humiliated FA Cup holders Leicester with a 4-1 defeat.
With Tuesday’s defeat, Liverpool are now six points behind Manchester City with 41 points in 19 games.
Leicester City on Saturday beat Manchester United 4-2 in their English Premier League encounter.
Nigeria’s Victor Osimhen denied Leicester the perfect start in the Europa League as Napoli hit back from 2-0 down to snatch a point.
Saturday’s victory comes exactly 50 years after Leicester last won the trophy.
The 22-year-old striker scored 27 goals in just 28 appearances for RB Salzburg who won their eighth consecutive title.
In 30 games with Tuchel in charge, Chelsea won 19 games in all competitions, winning Champions League and placing fourth in the Premier League.
This is the third time Leicester will earn a “made in Nigeria” goal with Ndidi and Iheanacho combining to fashion a goal this season.
The two sides meet again on Tuesday in a crucial English Premier League (EPL) date at Stamford Bridge.
Jamie Vardy, who wasted the best chance of the opening period, got free down the left and crossed for in-form Iheanacho.
