The 22-year-old has been in excellent form for Leicester city this term.
The 22-year-old joined the Foxes from Norwich City in the summer, for a fee believed to be worth in the region of £22 million, and he has made a fine start to life at the King Power Stadium, chalking up an impressive five goals and two assists in 14 Premier League appearances thus far.
Leicester have made a decent start to their Premier League campaign, and Maddison deserves a lot of credit for how well he has slotted into Claude Puel's setup.
Merson is certainly a big fan of the talented youngster.
The former Arsenal man told Sky Sports how Maddison is an excellent young player, with an extremely bright future ahead of him:
"In James Maddison, who has two goals in his last two games, Leicester have an excellent young player who is only going to get better and better."
Leicester face a tough game against Tottenham tomorrow, and if they are to have any chance whatsoever of beating Mauricio Pochettino's side, Maddison will surely have to be at his very best.
The Foxes can climb up to sixth place in the table with a win, should results elsewhere go their way.