“Have you seen Messi cleaning the floor with our jersey and flag?” Alvarez wrote today on his Twitter account, which has 2.2 million followers.

“He should ask to god that I don’t find him!” Alvarez added in another Tweet accompanied by two fist emojis, an enraged red face and a flame.

The Argentina team did not immediately respond to a request for comment about Alvarez’s statement.

Messi, who at 35 is playing in his fifth World Cup, scored in Argentina’s 2-0 win over Mexico on Saturday as the South American giants got back on track after suffering a shock loss to Saudi Arabia in their opening game.

Mexico must win their final Group C match against Saudi Arabia on Wednesday to have any chance of reaching the last 16.

Argentina must beat Poland to be sure of a place in the knockout stages, though a draw would be enough if Mexico and Saudi Arabia also draw.