India, July 10 -- Kylian Mbappe delivered the decisive moment that sent France into another World Cup semifinal, but his night ended with an image that immediately raised concern: the captain leaving the pitch with an ice pack strapped to his right ankle.

The forward was substituted in the 77th minute of France's 2-0 quarterfinal victory over Morocco after attempting to continue following a painful challenge. Morocco defender Issa Diop stepped on Mbappe's ankle in the 63rd minute, shortly after the Frenchman had scored the opening goal. Mbappe initially stayed on but eventually went down, received treatment and signalled that he could not finish the match.

The immediate question for France, therefore, is whether their leading scorer is ...