Leicester moved up to second in the Premier League thanks to a 2-0 win over Southampton on Saturday.
The Foxes closed to within a point of Manchester United at the top ahead of the Red Devils' blockbuster clash with champions Liverpool at Anfield on Sunday.
One moment of magic from Maddison made the difference against Southampton as he smashed high into the roof of the net from a narrow angle on 37 minutes.
The midfielder also remembered to adhere to new Premier League guidelines on goal celebrations as he mimicked handshakes and high-fives at a distance.
Stuart Armstrong struck the bar for Saints in the second-half, but the visitors badly missed the presence of top scorer Danny Ings up front, who was absent due to a positive Covid-19 test, as they missed the chance to leapfrog Chelsea and Tottenham.