Lautaro Martinez has questioned Kylian Mbappe for claiming South American football "isn't as advanced" as the European game.
The Paris Saint-Germain forward, 23, believes no South American nation has won the World Cup since Brazil's triumph in South Korea and Japan in 2002 due to the region's lack of competitiveness. Italy, Spain, Germany and France have all won the competition since.
Mbappe was part of the latter side that lifted the World Cup in Russia four years ago, beating Croatia 4-2 in the final. The Frenchman is keen to defend his nation's title when the tournament gets underway in Qatar in November, concluding the following month.