Javier Hernandez limped off with a suspected hamstring injury during Mexico’s 3-3 draw with Belgium on Friday.
The striker was substituted after 51 minutes after winning a penalty for Mexico on his hundred appearance for the national side.
He will be evaluated on his return to West Ham, where they will decide whether he would be fit enough to play in David Moyes’ first game as Hammers boss against Watford.
Hernandez has not had the best start to his West Ham career, only scoring twice since his move from Leverkusen in the Summer. However, new West Ham manager David Moyes is giving the Mexican a “fresh slate” to return to, as he aims to get West Ham out of trouble.
Mexico would go on to draw 3-3, Andres Guardado scored the penalty, after Eden Hazard opened the scoring in the 17th minute. Romelu Lukaku and Hirving Lozano would go on to score two goals each, meaning the game ended in a draw.