The 23-year-old winger had been tipped for a call-up to the England squad for three World Cup qualifiers next month after scoring 13 goals this season to help the Foxes into third in the Premier League.
Premier League: Manchester City beat Tottenham to extend lead to seven points; Liverpool stunned by Leicester
Pep Guardiola's side stretched their English top-flight record run to 16 successive victories in all competitions.
Premier League: Mohamed Salah stars as Liverpool beat West Ham; Leandro Trossard's goal helps Brighton beat Tottenham
Jurgen Klopp's injury-hit champions appeared to have lost their way after a five-game winless spell but are back on track after beating Tottenham and West Ham in the space of 72 hours.
Amid a surge in COVID-19 cases in England because of a new variant, the Premier League has warned clubs that punishments will be handed out for flouting the rules when it comes to celebrations.
Premier League: Goals from James Maddison, Youri Tielemans seal 2-1 victory for Leicester City over Newcastle United
Leicester were hardly tested by Newcastle, who are without a win in six games in all competitions as the pressure mounts on Magpies boss Steve Bruce.
Premier League: Manchester United decimate old rival Leeds 6-2; Leicester City dent Tottenham's title challenge
United, who made a stuttering start to the season, now have 26 points — five behind leaders Liverpool with a game in hand.
Premier League: Son Heung-min, Harry Kane score as Tottenham win North London derby; Liverpool beat Wolves
Jose Mourinho's men beat faltering Arsenal 2-0 in front of 2,000 vocal fans at Tottenham Hotspur Stadium to leapfrog Chelsea.
For the first time ever, Guardiola saw one of his teams concede five goals in his 686th game as a manager with City, Bayern Munich and Barcelona.
Maddison had been linked with a switch to Manchester United, but the England international has agreed to extend his stay at Leicester after accepting a new deal worth a reported $130,000.
Premier League: Leicester's James Maddison, Ben Chilwell injury doubts for Arsenal clash, says Brendan Rodgers
Maddison missed Saturday’s 3-0 home win over Crystal Palace with a hip injury while Chilwell came off at halftime
Coronavirus Outbreak: Marcus Rashford, Lucy Bronze among 16 England players to participate in FA's FIFA 20 tournament
The #Footballsstayinghome Cup kicks off on Friday, with the 16 players including Manchester United’s Marcus Rashford, Liverpool’s Trent Alexander Arnold and Olympique Lyonnais defender Lucy Bronze set to battle it out on the popular video game
Premier League: Leicester City manager Brendan Rodgers ignoring 'narrative' around midfielder James Maddison
Newspapers published photos on Monday of Maddison “partying” in Dubai during the Premier League’s mid-season break ahead of Leicester’s return to action against Wolverhampton Wanderers on Friday.
Premier League: Jamie Vardy scores brace as Leicester continue impressive run; Sheffield United, Newcastle bag comeback wins
Leicester striker Jamie Vardy is now just three games away from equalling his own Premier League record of scoring in 11 consecutive games
Champions League: Leicester City manager Brendan Rodgers says he has no plans to sell players in January
Leicester City manager Brendan Rodgers says they will not be selling players in the January transfer window but could make additions if an opportunity to improve the squad comes their way
Euro 2020 Qualifiers: England pick James Maddison in squad for Montenegro, Kosovo qualifiers despite casino visit
Maddison pulled out of the England squad to face the Czech Republic and Bulgaria last month because of illness but the uncapped 22-year-old was pictured in a casino during the 2-1 defeat in Prague.
Premier League: 'Resilient' Liverpool's unprecedented spree of wins gives mileage to early dreams of title victory
Klopp's men were worthy of three points. This wasn't Liverpool grinding out a win after the team had not played well. This was the Reds marching on in the face of disappointment and grabbing a win they fully deserved.
Premier League: Late James Milner penalty takes Liverpool eight points clear in first place; Tottenham rocked by Brighton
Liverpool won for the 17th consecutive league game thanks to Milner's dramatic contribution to a thrilling clash at Anfield. Jurgen Klopp's side ruined Leicester manager Brendan Rodgers' first return to Liverpool since being replaced by the German in 2015
Premier League: Brendan Rodgers aims to derail Liverpool's perfect start with Leicester in return to Anfield
Leicester's impressive resurgence under Rodgers and Liverpool's unconvincing midweek Champions League display against Salzburg means Klopp's side face a tough task to make it eight wins from eight
Premier League: Ruthless Manchester City put eight past Watford; VAR controversy continues as Leicester beat Tottenham
Although City fell one goal short of equalling the biggest Premier League margin of victory their swaggering display was the perfect way to erase the bitter taste from last weekend's shock defeat