Calcutta/ St Petersburg: France frontliner Kylian Mbappe will be fit to take his place in the starting XI for his country when they tackle Belgium in Tuesday's World Cup semi-final, despite missing Monday's training session.

The 19-year-old Paris Saint-Germain hitman has enjoyed a significant rise to prominence during the tournament, notably for his sparkling last-16 display in the 4-3 victory over Argentina, during which he scored twice and won a penalty.

There were, however, fears he might miss the St Petersburg showdown against their neighbours after he missed a session along with Samuel Umtiti, N'Golo Kante and Benjamin Pavard, who have also been stalwarts of Didier Deschamps' starting XI as France have gone deep in the tournament.

The coach moved swiftly to cut these worries down, though. "Four players were missing from our session as a precautionary measure, but everyone will be available versus Belgium," Deschamps told the media.

Greater worries had been reserved for Barcelona centre-back Umtiti, who has been fighting a slight knee problem for the duration of the competition in Russia. Again, though, Deschamps was bullish over the Lyon academy product being available.

"Like all the players, they could have a little worry that dates back to playing with their clubs during the season," he said.

Benjamin Mendy, who is another to have had knee issues, was back training with the team, however.

Meanwhile, Deschamps is confident he has prepared his players for any tactical surprises his opposite number Roberto Martinez might spring.

Belgium are the tournament's top scorers, and Martinez sprang a surprise by changing his system in the quarter final against Brazil, moving target man Romelu Lukaku out wide so Kevin de Bruyne could operate as a "false nine".

The tweaks worked a treat as Belgium neutralised Brazil's midfield while allowing Lukaku and Eden Hazard to get beyond their full backs.

De Bruyne profited from spaces opening up in the middle as Brazil's centre backs were forced to deal with the threat out wide, and he scored his first goal of the tournament in the 2-1 victory.

With Thomas Meunier suspended for the semi-final, Martinez is sure to make at least one change.

"Belgium didn't arrive here by chance. They played a great game against Brazil with a specific game plan," the 49-year-old said. "Will they do something similar for us? Probably. Their team is geared forward. They keep that particular quality, but against Brazil, Martinez intensified the midfield... and the Brazilians couldn't use those corridors.

"They attack very fast. So I've made sure that my players are prepared for any scenarios from the beginning of the match."